I (m 20) will try to keep this as brief as possible. I studied abroad for 10 days on spring break and became very close to a girl (f 19) on the trip. She is in a committed long term relationship. She is in my department, but not my major, we have had numerous classes together, but do not see eye to to eye on a few major life issues so my outward advocacy has kept us from becoming good friends previously. No bad terms, just never have grown close. Anyway, we go on this trip and by like day 2 or 3 we start becoming best friends. I spent everyday with her on this trip, we will average it out at like 16 hours a day with each other. We become completely inseparable. Between days 3-5, she starts holding my hand, putting her head on my shoulder, and I don’t know how to feel about it. I start to have small feelings for her, but I tell myself I will not do anything to act on it because she is in a relationship. By night 6, we both get tipsy and fact of the matter is, I tell her that I don’t think we should be doing what we should be doing. I said, “what would your boyfriend think of this?” She said, “he is not here,” and I replied “but I am,” as in, I’m not going to let this go any further, and she stopped momentarily. As we are walking home to the hotel , we both have had a lot to drink, but she definitely was more affected than I was. She began begging me to tell her how I felt about her, and I admitted I liked her. She got upset because she felt bad for leading me on, I assure her that it’ll be fine and that she will stay with him. We resolute on this and that none of what has been happening should be going on. She admitted during this conversation that she had been thinking of me in a certain way, but again, we concreted that it was wrong. We decided to keep the night between us and not bring it up again and most importantly, to leave what happened with us abroad and not let it return home with us. As we almost got back to the hotel, I became a little upset because we had a heart to heart, so I teared up. She then leaned in and kissed me on the cheek. The next day, It became apparent that she did not remember what we said we were going to do (stop the affection) so I bring it up and she is obviously disturbed that she shared with me what obviously was internal feelings. She tells me she felt bad for doing this all to me and it is because she has anxiety and basically used me as a substitute for her bf back home. She admitted she felt really bad about this, but that it would have to continue until she came back home for his support. Time and time again on this trip, the same boundaries are crossed, and people start assuming things so similar conversations happened time and time again. I told her that I felt she had emotionally cheated, she got mad at me for saying it and denied it. On the last day of the trip, someone snapped a picture of us standing at a friendly distance and sent it to one of her friends back home. This made her mad but we were good by the end of the trip. She made it very clear though that she could not wait to be home because of all the drama that people “made up” about us and that she couldn’t wait to make out with her bf when she got back to school to show everyone where her true allegiance lies to shut down all rumors about us. Once we are back in the states on the bus from the airport back to our university, she still was putting her head on my shoulder, even so much to the fact that she was texting her bf while doing so. We return to school, no public affection, not even a timely pick up , so I do not see him. On her social media she posted pictures and I commented an inside joke, her bf commented on the same post “ taken ❤️🔐”, and she liked it ofc. Within the hour, she posted on her private snap chat story how she missed ______ (country we went to). I gave her some crap for it, considering she was begging to leave and she said she did miss it and I said “oh I’m sure” as more of a rolling eyes moment and she sent back “😉”. Since then, she still is very flirty over text sending red hearts, giving me little pet names, and asking when are we going on a “lil ____(insert place) date”. I’m having problems dealing with this and we did have a conversation after the trip about her stopping the flirting and she agreed to keep our friendship yet here we are again. I made it very clear that it would be different if she wasn’t in a relationship but obviously she still is. I feel like I’m the second fiddle and while it’s easy to say to cut her off outright, I still have two classes with her this semester and a night class next semester. I think we could be friends but all of the advice I’ve been given by friends, how she acts compared to how she talks, and my own heart and feelings have made this all very difficult for me. What do I do without making my life more miserable? Do I ignore her messages until she does something physical again and then pin her for it, essentially calling her out? I don’t have it in me to cut her off completely due to our shared spaces, but even though she claims that after she returned that she did have a conversation about me to her bf, I just don’t believe that it covered everything. What should I do? Please send help!