I need some advice
Okay, backstory, me (17) and this girl (17) dated and broke up about 2 years ago, and since then we both got into relationships with men. Me and my boyfriend just broke up after a year and a half due to realizing we would be better off as friends. Romantic compatibility just wasn’t there due to reasons on his end, and the fact that I realized I loved him more platonically and am 100% gay. She’s still with her boyfriend and they’ve been together for a little over a year. Her boyfriend sucks though, like, treats her like garbage and cheats on her constantly.
Now that there’s some backstory, she’s been flirting with me like the entire time we were with other people, and she’d make comments like “we should break up with our boyfriends and get back together” and many many other comments like that for over a year now. She also gets extremely touchy with me and like will lay her head on my shoulder and things of that nature, and after talking to a mutual friend it was revealed she only does that with me and no one else. Now that me and my ex boyfriend are no longer together, she’s been making more bold advancements, but I don’t really know what to do because she still has a boyfriend, and on top of that I can’t tell to she genuinely has feelings still or not?? I never got over her and even 2 years later I still really really like her. I feel really crappy for still having feelings for her because she’s taken, and I just don’t know if she’s flirting as a joke, flirting because she still likes me, or flirting because she misses being treated well.
Of course I would never engage in anything romantic with her while she’s taken, but I just really feel lost and hopeless and don’t know what to do. Does anyone have any advice on what I should do in this situation?