Meh.

[Davesprite shrugs, dismissing the weirdness. Then again, he has a lot more experience than she does with alternate selves.]

You'll get used to the fact that grown-up you is a nice old cat lady who thinks I need a million fuzzy sweaters and once stabbed some dude in the eyes and rode his body down a waterfall. I mean, I know it's tough, but I think you can work out these massive differences.