should i give up or wait?

hi! so I (20f) have had a situation with my friend (20f) for a few weeks now. We kind of fell for each other, she is very flirty and even tho I’m not good at reading signals – she makes some of them kind of obvious. She’s quite touchy and often holds long eye contact with me. The problem is that she has a boyfriend. I think they don’t have a great relationship, she never really talks about him, most of the time she spends with me (texting, meetings). She’s not sure if she’s gay or bi but they have been together for like 2-3 years and they live together. I think she may be expecting me to make a first move but i don’t even know if it makes sense. I mean, she is with him and I’m kind of worried that even if i make a move she won’t leave him. Don’t get me wrong, i don’t wish him bad, i don’t even know this man, but that’s the situation that could happen considering the fact that it kind of looks like she’s looking for a second option. Sometimes I think she’s just playing with me but there were situations when she clearly showed she liked me more that a friend.

I don’t really know what to think about it and what to do. Honestly I would really want to try with her, but I’m not sure what she’s expecting from me… I really got feelings for her which may seem quite naive and pathetic. Also I need to add that I’m not really a person who makes first moves so i don’t even know what I should do if i wanted to. This whole situation makes me overthink every single thing i do towards her and i cannot focus on anything which makes me feel really bad and sad.