I know I’m a bit late to the party, but I recommend having that conversation in person, especially because of how everything’s gone so far. I know it can be scary, but it’s even scarier to see texts like that (in either way she could respond). It’s hard to convey proper emotion over text, and in my experience it works out over a FaceTime or just face time lol. Don’t feel nervous, since she knows you've liked her for a while and keeps talking to you without bringing it up, it’s clear she at least likes you as a person, if not romantically.