[ Tate brings up Kate. Tate brings up Kate, and Derek visibly winces, looking pained. That's a kick to the stomach, and it caught him off guard. He feels winded, suddenly, and when this vicious, spiteful anger directed at Tate flares up inside him, it only takes a second for it to die down and fade away. ]

I'm not trying to... hide anything from you. It's just...

[ Derek's voice is a little strained, and he stands up, wandering a little. He walks to the foot of the bed, arms over his chest, like always, and he stares at his feet, brows pinched together. Fuck. Didn't think Tate would remember that. ]

It's hard to talk about. If I tell you, you have to keep it to yourself. I don't... want to give you that kind of responsibility, least of all when you're recovering.

[ And it's unspoken, but still obviously there - he doesn't know if he can trust Tate. ]