It sounds like something’s going on in her life — she’s changed colleges and instead of going to school far away from home, she’s now going to a new school nearby. I think she’s feeling conflicted and maybe overwhelmed by some things you haven’t mentioned — maybe because she hasn’t mentioned them to you! Why not hang back, but balance that with flowers, little gifts, invitations to have coffee, and emails or texts letting her know you’re thinking of her. Give that a set amount of time so you don’t fall into the friend zone, and after that set amount of time, if you don’t have a good reaction from her, then move on. But give it this one last shot. Can’t hurt, and it might help!