A/N : Sorry for the wait ;) Hope you enjoyed the previous chapter and I loved your reviews. Thank you :)

Right after lunch, they both made their way back to the lab and it was just routine work for them. The normal paperwork waiting for Horatio whereas bullet casings are waiting to be analyzed. That evening, Horatio went home but never really bothered to spend the night with Calleigh. He was too tired thinking about the letter that he received and he didn't want to be disturbed. Once home, he ate dinner which Calleigh prepared and went up to his home office to clear his mind about the letter. Calleigh knew better not to disturb him once he goes into the office. The next day was almost the same. Horatio never really spoke to anyone unless it was necessary. It was really bothering Calleigh since she couldn't get Horatio to tell her what was bothering him. The day went by the same as the day before. Horatio went home just to have himself repeat yesterday.

"Horatio…you haven't talked to me." Calleigh asked as they were lying in bed together.

"What's there to talk about?"

"I don't know. Maybe why you're acting weird would be a good start."

"I'm not acting weird sweetheart." He said as he played with her blond hair. "It's just that the cases are taking a toll on me. And it seems to be tiring me." He said and brushed his lips against hers. "I'm fine sweetheart. Don't worry." She nodded and kissed him again, this time, passionately. She was somehow in the mood.

"Calleigh…" He moaned in between their kisses. "Let's go to bed alright." He broke the kiss. Calleigh looked at him, looking hurt that he didn't want it. Horatio wasn't in the mood for anything. Calleigh tried her luck again and kissed him just the way he likes it and nibbled lightly at his sensitive spots. She heard him gasp at her kisses. "Calleigh…" He moaned again as he turned away from her, not allowing her access. "Let's just go to bed okay." Calleigh was really hurt. He had never refused her before, even when he was tired. Calleigh decided to push it aside and turned away from him.

Horatio noticed that Calleigh was hurt, from her expression and her looks. "Sweetheart…" He tried calling her but she ignored him. Horatio decided to make up to her after realizing that she was ignoring him. He pushed her hair aside and started kissing lightly her shoulder and up to her neck. "I'm sorry sweetheart." He said in between his kisses. Calleigh turned to him and he took her lips in his, kissing her passionately. Horatio gave in to her needs and made slow and gentle love to her. After their session, Horatio went into deep slumber whereas Calleigh just laid there in his arms, trying to control her tears and sobs. There was something different about him tonight. To her, his caresses were less than stimulating or arousing, and when he took her, it was almost mechanical. He wasn't as emotionally involved as he would always be. She did not sleep through the night afterwards, but rationalized that he was concerned about his job and the pressures at work. Calleigh didn't confront him about it later on. She just kept it to herself.

It wasn't until 2 days later that Horatio was handed the similar-looking envelope with no return address. He made sure that he opened the letter in his own private surrounding; his office.

Dear Horatio,

The other evening was the best evening I've ever spent with the most incredible man, I've ever known. The single thought of you gives me this sudden urge to be with you and to enjoy the sweetness of your skin against mine. Your kisses were heaven and when you held me, I was lost to my own erotic dreams. Your touches were so sensational it sends sparks of fire to my soul. I'm thinking about you, calling out your name, muscles tightening, and heat flaring like slivers of lightning, your delicate fingers running along my thighs. When we made love, I tasted bliss, the likes of which I'd never known before. Everytime, it felt like the first time. When we met, we received a blessing from above, the gift of passion, and love.

Tu amante apasionado

"Again. Your Passionate Lover." He said to himself. What he didn't realize was that the letter had effects on him. He was aroused by the letter. "Damn it." He cursed when felt tight in his pants. He looked down and noticed that his member was rising. He slipped the letter into his drawer and rushed his way back to the locker room. He needed a very cold shower. Calleigh saw him rushing to the locker room and she got suspicious with his actions. She followed him to the locker room only to find it empty but the shower was running.

'He never takes a shower in the lab unless it was really necessary which in this case would only be after he has had a dirty day in the field. Wasn't he in the lab all morning?' Calleigh thought to herself. She knew that Horatio doesn't like to take a shower in any other places besides his own house. She was getting curious and very certain that he was hiding something from her. Suddenly she heard a grunt from inside the shower. Something was up with Horatio and she knew it. She waited for him to come out of the shower before she would call out to him.

"Calleigh? What are you doing here?" Shocked, Horatio asked the moment he came out of the shower and saw her waiting outside.

"What? I can't be here in the locker room?" Calleigh remarked sarcastically. She noticed that his face was so flushed. "Why are you so flushed?"

"Who says I'm flushed? I'm fine." He tried avoiding eye contact with her as he was finishing up with the buttons and he walked past her, rushing to his office. Calleigh didn't like how this was looking. He was definitely hiding things from her. He was avoiding her. Physically and emotionally. That brought her back to the night where Horatio had actually refused her. 'Is he cheating on me?' The question popped in her mind. She was never the kind of person who would accuse Horatio of cheating. She knew Horatio too well but right now, she couldn't deny the fact that that thought is running in her mind. His behavior was mimicking a cheating husband.

"Horatio. I want you to tell me what is going on with you. Right now." Calleigh burst into his office without even knocking. He jumped.

"Calleigh. What's wrong sweetheart?"

"I want you to tell me what's going on with you." Calleigh repeated.

"There's nothing going on, I believe."

"You just took a shower Horatio. You never do that in the lab!" She almost shouted. "And need I point out that it wasn't a hot shower. And that you were flushed when you got out." Calleigh crossed her arms across her chest. "And I heard you Horatio! I heard you!" She almost burst out into tears. Horatio was taken aback by her. He was speechless.

"Sweetheart…there is nothing going on. I was just taking a cold shower. It's pretty warm isn't it." He tried to soothe her as he walked up to her.

"Warm?" She burst. "For the love of God Horatio Caine! This lab is air-conditioned!" That was it. Her dam was broken and she was crying. Horatio quickly took her into his arm to calm her down.

"Shhh…" He let her go. "Sweetheart…okay okay. I must confess." Calleigh stopped crying. Her heart was thumping so hard as she waited for him to tell her the truth. She didn't even want to hear it. "I was just thinking of you sweetheart. And you know how the thought of you drives me crazy right?" Horatio smiled slyly. Calleigh looked at him, into the eyes, searching for the truth. "Calleigh, trust me." He continued as he wiped off her tears with a single brush of his thumb. He lied. He lied to Calleigh. He lied to his wife despite promising to her on their wedding day that he would keep himself opened to her. It broke his heart to lie to the love of his life but he didn't want her to worry and he didn't want her to stress herself out. Horatio decided that she should go home and have some rest. That evening, dinner went very quiet for them. Calleigh didn't speak to him much and she only spoke if Horatio asked her questions. The next day went the same. Calleigh still didn't speak to him. He decided to surprise her with her favorite flower, tulips.

"Sweetheart…" He went into her lab, with flowers by his back and hugged her with one arm from the back.

"Horatio. Let go. We're at work please." Calleigh didn't turn to him. Instead, she kept working on the gun she was disassembling. Then Horatio handed her the flowers.

"This is for you sweetheart." It was bright yellow tulips that he bought. Her favorite. She smiled and turned to him, leaving the disassembled gun on the table.

"They're gorgeous." She gave him her 1000-watt smile.

"Not as gorgeous as you sweetheart." He said and kissed her ever so passionately. "Are you still angry at me?" he asked.

"I guess not anymore." She smiled and kissed him again.

"Great. I love you sweetheart. But I got to get back to work. I'll see you tonight at home." Horatio said as he went back to his office.

He then took out the letter that he received yesterday and went on to process it. It was the same results. No fingerprints, no traces, nothing. He was getting frustrated that he was nowhere near to identifying the sender of the letter. The only clue left for him was 'Your Passionate Lover'.

"Lisa." He spoke aloud. He quickly made his way down and drove to the Miami Prison to talk to Lisa. It could be her. He needed confirmation. He needed to get the log to see if Lisa has been sending out letters to anyone. Once he got the log in his hands, he thoroughly went through it but to his dismay, he didn't find anything that proves that Lisa sent any letters to anyone. There wasn't even anyone visiting her. He decided to talk to her.

"Lisa."

"John Kelly. To whom do I owe this visit to?" She asked mockingly.

"What are you up to Lisa?"

"Uhm…I believe I'm in prison right now. Are you stuck on stupid or something?"

"What I meant, what are you doing here in Miami?" Horatio asked.

"Why do you care?"

"Because I need to know. I want to make sure you're not up here in Miami to cause harm."

"Harm? To who? You? I was arrested because I assaulted you for god sake. What the hell do you want?"

"I have been receiving letters. Intimate letters. And I want to know if they were from you." Lisa laughed hysterically.

"Gee John. Why the hell do I even want to send you letters? I got my revenge on you. And besides, I don't even send any letters out. I don't even get any visits from anyone."

"Are you sure it's not you? Because if I find out that it was you, it's not going to look good Lisa." He warned.

"John. Don't think I'm scared of your threats. It wasn't me. It's probably your old flames. Don't you have many of them?" She replied sarcastically.

"Fine. You better hope I don't find out it's you." He huffed.

"You're still as sexy as you were John. Or is it Horatio now? That's still a sexy name though." She chuckled. Horatio gestured to the officer to bring her back into her cell.

TBC... Reviews?