How to get over a crush on an aromantic friend?

So, there's this girl. We've been friends for about 11 years now, and now I am pretty sure that I am in love with her. However, she is pretty sure that she is aromantic, and has stated that even if she did feel romantic attraction, she would be straight, so our friendship isn't going anywhere romantically. I'm fine with that. I want her to be happy, and being with me will not make her happy.

So that brings up the question of how to get over it. I started developing a crush on her when I was 12, and by the time I was 14, I thought it had gone away for a few years, but it came back this year stronger than ever. She announced that she was going to college a few states away, I thought that it would be a good opportunity to meet other people and get over it, but now instead of just being in love with her, I'm in love with her and always sad because she's so far away and I can't see her.

I've also tried thinking of her flaws, but that isn't working, either. Yes, she's stubborn, but so am I. Yes, we have different religious beliefs, but that honestly doesn't bother me. Nothing about her really bothers me...

So, if distance and trying to focus on flaws aren't working, how can I get over this?