<human>: I've had a crush on this girl for about more than a year now, and we do talk quite a bit more nowadays. Our other friends in our group seem to be giving us a bit more space and letting us talk to each other for a bit on the way home which is really nice.

Firstly, I'm not quite sure how to ask her out and sort of progress onwards to a relationship. Perhaps I'm thinking a bit too rushed, but I'm always having trouble asking her out. Things to say, how not to make it awkward?

Secondly, how do I deal with an ex [15F] that gets in the way all the time? She has these really extreme mood swings that really concern all of us, but then sometimes she forcibly pulls the crush away from me. I mean understandably the ex is upset with me but it's really annoying when she forces distance between us.

And lastly, I was talking about prospects of where we would be going for university later on in the future, and it turns out we'd be going pretty far from each other. This is mostly the reason why I'm not sure whether or not to pursue a relationship with her, for fear of having it fall apart in the last year of school since we'd be going to different places.

Can you condense the text into three sentences or less?
<bot>: Have a crush on this girl, not sure how to ask her out, an ex gets in the way, and we could be distanced in the future after high school.