[Relief floods him, coupled with a reinvigoration and determination now that they have a lead. Going to Sumeru without her would have felt empty, and he doesn't know if he would get any answers without her given this is affecting both of them. That and...he wants to share this experience with her, and it feels like they're just going on another one of their adventures like they always have. Except they've never done that in their lives...a feeling that he can't shake off.]

Guess we'll have to bring extra toys and treats for her. The last thing we'd want on a trip is a grumpy cat.

[At least she's food driven. That way he can help keep her happy by just buying her food. That feels familiar too, somehow...]

I hope your brother isn't too leery of this. I realize we've just only met but...well, you understand. I guess it'll be hard to explain to him that something strange has been happening between us apart from a sudden budding romance.