Should I stay friends with a girl I'm catching feelings for?

There's a girl I met through a friend over the summer that I've gotten pretty close with. However, she's been in a relationship for three years and our school is several hours away from where he goes to school. Recently, she's always been wanting to hangout with me and spend time with me, and she doesn't ever talk about her boyfriend or anything negative in general. She went home for thanksgiving break and is posting all this stuff with him and although I'm not jealous because I have someone I'm currently dating, just not exclusive with at the moment. However, I feel like she's using me to provide the attention to her that her boyfriend can't give being several hours away, and there's nothing I hate being more than the attention giver who at the end of the day, isn't the one she wants to be with. I should also add she is transferring either next semester or starting the next school year to a school much closer to home from being kicked off her soccer team. Should I cut this girl off? Or continue being friends with her and risk getting true feelings?