[ They've both survived the end of the world, they can both survive some awkwardness.

Not that she realizes there's anything to feel awkward about about this moment. She's already very deliberately done her best to set aside worrying about the things that have bothered her, those little bits and pieces that have nagged for reasons she hasn't really been able to pin down. Right now, she just feels good, relieved in a way that she doesn't feel is important to examine just yet. ]

If you feel the same, you could just say "me too." That's a pretty quick way of doing it.