<human>: Condense the text into a few key points

Alright so basically it starts like this, during the summer a friend of mine throws a party and invites me so I decide to go. There's this girl there from a different school so I just decide "fuck it I'm going to flirt with her the whole time and see where it gets me". We're hitting it off and things are going better than expected when I hear her casually mention her boyfriend (who is at the school she goes to) to another girl. Well the boyfriend wasn't at the party so I decide to keep it going with her and she never directly tells me she has a boyfriend so I assume that the casual flirting is cool with her. Later in the night when most of the people were sleeping she asked me for a massage because she was tired and her back was sore etc. So I give and one and and before I know it we're cuddling on some couch for the next few hours. I didn't move in to kiss her or do anything more than cuddling because I knew she had a boyfriend. So we fall asleep and the next morning she announces that she's transferring to the school everyone at the party goes to. Anyways fast forward a bit and she still has her boyfriend and we talk frequently in school, I want to get into a serious relationship with her but I just really can't because of the whole boyfriend thing. What should I do?
<bot>: Girl with a boyfriend in a different school flirts with me, I flirt with her but I can't take things to the next level because she has a boyfriend