While walking through the lab, looking for Warrick to say she's leaving, Catherine puts her coat on.

She's glad she can go home after all, now she can take care of things for her mother, like organizing the funeral. She needs to talk to her sister about that.

She finds Warrick sitting in the break room. He's on the phone with someone, so Catherine waits in the doorway.

"Yeah sweety, I know, I miss you too. Can we get together later?" Catherine hears Warrick say these words, but they don't bother her as much as they should. She thinks it's not such a big of a deal, but then she hears Warrick say something else. "Okay, see you then. I love you." These last three words spoil everything. Catherine suddenly feels cold. She wants to run over to him and hit him but something in her holds her back. Warrick had said these words to her more than once and she felt appreciated at the time. But now it feels worthless, and it's like her whole relationship with Warrick was all fake.

She clears her throat. Warrick turns around to see who stands there and seeing Catherine in the doorway gives him a fright. His eyes are all wide and that says enough for her.

"Who was that, Warrick?" She asks in a low voice.

"Just… a friend."

"You think I'm stupid?" She says, strong enough to hold her tears. She's more mad than sad at the moment. "Give me you phone." She demands.

"Cath…" He looks guilty. Too guilty in her opinion.

"Give me your phone damn it."

"Don't be so immature." Warrick says with a slight smile.

Accepting that he won't give her it to her voluntary, she walks over to him and grabs the thing off the table. She looks at the list with last callers.

"So, who's Tina?" She asks.

When Warrick doesn't respond, she says; "Well, shall I give her a call and ask her?"

He still says nothing. Catherine makes the call.

"Hello?" She hears.

"Hello, is this Tina?" Catherine says in the phone.

"Yes, who's this?"

"How do you know Warrick Brown?" Catherine asks.

"Warrick Brown my husband?" That was it, the fact she was afraid for, the fact that ruined the last few weeks for her, the fact that ruined the rest of her life. She shuts the phone off and drops it.

She tries to look indignant at Warrick but all her eyes show is pain and anger.

"So… when were you going to tell me?" She asks.

"Catherine, it's not what you think. I can explain."

"Where did I hear that before? You are cheating on me AND her, Warrick!"

Warrick sighs and stands up. "You don't understand. I…" He puts a hand on her shoulder but she shakes it off. "No Warrick, I do understand. I can't believe you're married. I can't believe you began a relationship with me while you were married!"

"I'm going to divorce her, but now is just not the right time." He says.

But Catherine thinks that's a lousy explanation. "What, you were addicted to gambling, now you're addicted to women as well? Two for one, or something? Didn't one addiction bring enough problems for you?" She yells.

Warrick slaps her in her face. Catherine grabs her left cheek with one hand and stares at him. "I can't believe you just did that."

"Cath…I'm sorry." Warrick looks just as shocked as she does. "I didn't mean that."

She just looks at him, tears filling her eyes.

"Come on, Cath. You know I love you!"

"If you loved me, you wouldn't hit me." She says, feeling miserable.

"I would never hurt you." He says.

"You just did." All she wants right now is to get out of there. She turns away from him but he grabs her arms and makes her face him.

"I didn't mean for that to happen." He repeats.

"It makes no difference." She says, letting out a sigh and shaking his arms off again. "I'd better go. You should go to your wife." A tear is falling down her cheek. She pushes him aside and walks out of the room. Warrick wants to go after her, but he knows he totally blew it.

TBC