[He's not sure he can promise not to feel like it's his fault, but maybe if he wasn't anywhere near enough to actually save her he could manage. (Probably not.) So he looks vaguely dubious, and kind of guilty about feeling dubious, but he can ask:]

Do you have someone in particular you'd like to take you?

[He doesn't actually know a whole lot of Ellie's social circle. Does she have a social circle? She ought to have a social circle. Even he, the murder machine, has a broad collection of friends.]