There was a knock on Penny's door. She opened it and saw her ex-boyfriend Leonard standing there twiddling his fingers. Penny put her hands on her hips.

"May I help you?" She said questioning Leonard.

"Yeah I was wondering if you wanted to come over and watch Star Wars with us." Leonard said looking down, then up again.

"No thanks, I'm trying to prepare for my audition tomorrow," Penny said happily.

"Oh okay," Leonard said turning around.

Sheldon opened the door and smirked. "Leonard c'mon we're about to watch Star Wars without you."

"Leonard," Penny called.

Leonard faced Penny and said," Yeah?"

"Don't you ever come knocking over here again okay, we're exes and it's got to stay that way," Penny said quickly.

Leonard began to flashback to the night that he and Penny broke up, tuning her out.

Flashback

Leonard brought roses and Chinese food over to Penny's place for dinner. Penny was in her room reading a paper Leonard had sent to her from a previous time when he was mad at her. He totally forgot about the letter and hoped she hadn't found out.

"Penny, I'm here with the Chinese food!" Leonard yelled.

Penny walked into the living room from her bedroom with the letter in her hand.

"Leonard, what the hell is this?" she questioned with anger.

"A piece of paper," Leonard said jokingly with a chuckle.

"Why does it say "'Dear Penny, I am so mad at you…. How could you be such a bitch towards me."?'

"Oh, you weren't supposed to see that. I was going to burn it," Leonard said setting the food down.

"Well I see it now. Leonard Hofstadter you have so much to pay for. I thought you would never think of me that way. That really bothers me. Why would you write such a thing and how did it end up in my room?" Penny asked rhetorically.

"I forgot I had it and it must've slipped out of my pocket. I was just venting my feelings on paper when I was mad at you. I don't think you're a bitch Penny, I love you." Leonard said trying to make Penny understand the letter was unintentional.

Penny, however, did not take it that way. Penny was beyond livid. She took the Chinese food and dumped it all over Leonard. She was not done; Penny yelled and bitched at Leonard. This only caused an unlikely reaction out of Leonard.

"Penny, can't you see that I love you. I wouldn't do anything to hurt you intentionally. You want me to go? You want me to not be your boyfriend anymore. That hurts it really does that you are thinking irrationally, over something so little. It was unnecessary for you to dump the food I bought for us all over me. I do apologize about the letter."

Penny replied, "Oh shut the hell up Leonard. Irrational? You called me a bitch in a letter which hurt my feelings. You could've talked to me about how you were feeling. Leonard, yeah I want you to go. Go on we are done….FOR GOOD! Get out of my life, get out of here Leonard Hofstadter."

"If that's how you feel and you want this too really, truly be over; I'll go. I love you Penny, I always will."

Those were the last words Leonard said to Penny.

Present

Leonard snapped out of his daydream. He walked back over to his apartment with his head held down. What he didn't know is how much he truly will be hurting. He loved Penny with all his heart. What hurt the most is she was across the hall from Leonard and he could no longer speak to her. Leonard didn't know how he was going to cope with his breakup.

The next morning Leonard woke up early to go to work. Leonard began to indulge into his work to get his mind off of Penny. His schedule got busier, so he wasn't around the guys as much except for work. Leonard started to grow a beard and crashed regularly at work. Howard opened Leonard's door and found him sleeping on a small mattress.

"Leonard, Leonard wake up," Howard said shaking him.

Leonard tossed around on his stomach ignoring Howard's urge to wake him up.

"Yes," Leonard replied with his face mushed into the pillow.

"Get up, we got work to do. Remember when you said for me to come early yesterday. I'm here. Let's get this show on the road. Oh by the way Sheldon told me to bring you these. They are a change of clothes, deodorant and a razor to shave your facial hair," Howard replied seriously.

Leonard looked up and said, "Let me change my clothes and shave my facial hair. Give me ten minutes to get ready then we'll head straight to work."

"Okie dokes," Howard replied.

Leonard rose up from the mattress and went to the bathroom. He changed quickly into his clothes and shaved his beard down a little bit. He thought a beard would make him look manlier. He walked out of the bathroom and addressed Howard.

"So I'm thinking about working out at LA fitness," Leonard said with a smirk.

"Why?" Howard replied concerned.

"Who says you can't be a scientist and muscular at the same time? Obviously, I have a lot of work to do, but I think I will enjoy it. It will be something else that keeps my mind off of Penny." Leonard replied.

Howard said, "Well, just make sure you don't get hurt."

"Oh I won't, I will get help from my buddy Justin DuBald. He's a scientist as well," Leonard replied.

Leonard and Howard continued working and they were done by five o'clock in the morning. Leonard went to his apartment and Howard went home to Bernadette. Leonard dropped his keys coming up the last flight of steps. He looked at the hall across from him and saw Penny's door was closed. The door opened and Penny walked out. She faced Leonard, but he quickly glanced at her and walked into his apartment. He wanted to show no emotion that he was hurting, even though he was sad and upset without Penny. Leonard couldn't even make it to his bed, he was so tired that he grabbed a pillow and blanket and slept on the living room floor.

Later that afternoon, Sheldon found Leonard asleep on the floor, in his clothes. Sheldon shook Leonard and he woke up. Leonard took and shower and changed into his gym clothes. He grabbed his iPhone and earbuds and walked out the door.

Before he could close the door, Sheldon said, "Just where do you think you're going?"

"To the gym," Leonard replied with a half-smile.

Leonard walked to the gym and when he got there he met up with his friend Justin DuBald who was also a scientist. They did some light stretching before Leonard began Justin's hard workout routine. The basics seemed easy but, they were not. Surprisingly, Leonard was keeping up. I guess you could call it determination. After his sort of intense workout, Leonard went to go get a drink by the water fountain. When he turned his head he noticed Penny standing with her yoga pants and pink tank top on with her hair in a ponytail. She was approaching the water fountain. Leonard stood up from the water fountain and began to make his way over to Justin. Penny stood and watched the guy she knew that loved her act like she was nothing to him.