[Loki shrugs. Well, he knows Billy is friends with Tony. It makes sense that he would know.]

Perhaps you ought to speak with her.

[He isn't certain if he's relieved or not that Billy has skipped the other point. Better to focus on Rogue. If she was better, perhaps the other problems would be less pressing.]

I feel as if she's drifting away. There is nothing I can do for her.