Goddamnit. He shouldn't have opened the window, or-- something. Anything. Because he raises his hands to rest gently against the sides of Clark's neck and returns that kiss, almost embarrassed at how he sinks into it, into the warmth and security Clark gives him. Everything about him is screaming that he's in an awful mood, and it makes him feel like he should shove Clark away and recoil in isolation. But he doesn't.