Stacy stepped into her office and jumped back in fright, dropping an empty cardboard box to her feet at the sight of Greg House sitting comfortably behind her desk, waiting. He was stretched out with his feet up on the desk and he acted as if he belonged there.

She felt indignant for a split second, about to reprimand him for having his feet on her desk but she dismissed it quickly; by the end of the week it would no longer be her desk.

She just wanted him gone.

"Greg!" She hissed, picking up her box and stepping back into the room before slamming the door behind her. "Get out."

"But you just shut the door." He said his eyebrows slightly raised.

"Greg!"

"We need to talk." House's voice rumbled in a low subdued tone as he lowered his feet to the ground.

"We don't need to do anything and considering that I never ever want to see you again I think talking will be the least of your worries."

"I don't... I don't know what happened..." he stumbled thoughtfully.

"I DO!" she snapped angrily, her eyes glowing with a merciless fire. "You whispered dear little Allison's name as you had sex with me. Apparently you had to fantasize about someone else after chasing me and harassing me for the past 6 months! I know you're not one for compliments but that's the most horrible insult ever."

"I..." he stammered, he almost wanted to apologise but he knew he couldn't. "I don't know what I'm feeling. I still love..."

"Don't!" She interrupted him. "How could you even think of saying that after what you did last night?! I'm never going to be yours again. I'm never going to be put in a position where you can hurt me like you did last night."

"You hurt me first!" He shouted and stood. He had devoted so many years to her, gotten so close to her and yet that made it so much easier for her to hurt him. To press the knife in and twist slowly.

"You pushed me away!" She answered.

They breathed heavily.

He couldn't deny it.

Their eyes fought in an intense battle of wills.

They were both at fault.

House sighed.

It could never work between them.

The fire in his eyes diminished and his breathing calmed.

"What are you going to do?" He asked calmly.

She set the box and her purse on the desk and smirked slightly. "I'm leaving."

"Yeah... and I'm going to believe that's all there is to it." he said sarcastically. He watched as that same malicious glint he saw last night returned to her eyes.

"You've put me through hell, Greg. Now it's your turn." She answered cryptically.

"What are you going to do?" He said more forcefully.

"What do you think your little girlfriend will make of us sleeping together?" she said in an overly sweet tone, "Gory details and all."

"Nothing." He said nonchalantly.

"I doubt it."

"Not today." he very nearly begged. "Just not today."

Cameron's HIV test weighed heavily in his mind. He knew it was hard enough for her to work today let alone deal with Stacy's crap.

"I don't plan on being here tomorrow."

"Stacy." he said empathically.

"You really do care for her don't you?" Stacy observed, before grinning. "Which makes it all the more easy."

House quivered inside. She had spent so long with him, she knew his in's and out's and almost understood him as well as Wilson. She knew that to get through to him, to hurt him she had to hurt what or who he cared for.

And she'd picked the most vulnerable target. Cameron was vulnerable... and he was vulnerable to her pain.

"You go anywhere near her and I'll tell Mark." He threatened in a low dark voice.

"I know you so well." She said with a subtle smirk that fell quickly. "Mark already knows... I told him as soon as I got home last night."

"You didn't." He said in shock and confusion.

"I did. A moment of weakness I said. I told him everything... from the therapists file you stole to us last night. He knows."

"Does he know that the only reason why you left was because I said another woman's name?" he said prowling around the desk; stalking towards his prey, intimidating her. "You and I both know you would have stayed. We'd have had sex over and over through the night and you'd be screaming my name until you couldn't speak." He growled in a quiet poisonous tone. "How do you think your husband would take that news?"

"Everybody lies Greg." She said staring up at him defiantly, "Mark believes me; he's beginning to trust me again. But who do you think he will believe? Who will she believe?"

House growled lightly and stepped towards the exit.

"Greg?"

"Yeah?" He said turning back.

Her right hand seemed to crack like a whip as connected with his cheek and jaw, his head turned so swiftly to the right his brain seemed to shake in his head and pain shivered in his head and across his cheek. He frowned and dropped his jaw wriggling it experimentally and painfully.

"You forgot something." Stacy said haughtily.

"Thanks." he grunted sarcastically and walked past her out of the room, slamming the door loudly and with such force that it shook on its hinges along with half the doors in the corridor.

Stacy grinned.