in love with my friend, advice?

Im in love with one of my best friend. We have worked together for the last few years and gotten close (kissing, not sex) but never officially went out. she tells me she loves me(idk if she means as a friend or more) but last year, before she left for college, she told me she just wanted to be friends, and is back from college for the summer. Next year we will be going to the same college and living in the same dorm, and now we are working together again. She wants to hang out"just like the old days"which usually involved us cuddling and kissing while watching movies, but she has a boyfriend now but there on the verge of breaking up it sounds like. idk what to do! if we hang out while she is going out with her bf still, i don't want to mess around with her if she has a bf, but i want her so bad...what should i do? and what can i do to hopefully make her my gf during the summer and into college? advice/thoughts?

oh dear i know this sounds harsh but stay away untill she has got rid of him then talk to her i made the mistake of getting close to my best friend when he had a girlfriend and it went horribly wrong he split up with her told me he liked me and used me untill something better came along which just happened to be the girlfriend from the beggining and i havent spoke to him since!!talk to her find out how she loves you!! if its as a friend she wont hate you for asking and if its more then she will be gratefull you askedgood luck