[Touches her shoulder gently, stopping their walk towards the welcome center -- because, her awkwardness aside, he probably should be taking this more seriously, if only because it's serious for her.]
Even if you don't blame me for it, [and whatever it wasn't that she omg forced him!1 or anything, even if she was an "instigator" he was very much into it] I'm still responsible and I've broken your trust and made you uncomfortable. IF there's anything I can do to make it right, you can tell me, yeah?
[fff] You're a good friend. I care about you, milady. [maybe under normal circumstances, aside from random flirting, he'd never have taken it that far if she wasn't into the idea...] The last thing I'd want is to make you uncomfortable with something like this.