I know some people don't like younger members complaining but if you have nothing nice to say don't say anything please.

I'm 16 and go to an all girls school but have to classes with boys in them and this year me and one of the guys became really good friends and would talk till all hours every night and he would get along with my other friends too but wasn't as close. He had a girlfriend which I knew from the start and i was fine with it. After a while people started spreading rumours about us which i couldn't handle but he really helped and got me through it and put u with all my panicking. His gf started getting jealous because some idiot told her something so we couldn't talk as much. Then recently out of no where him and my friends are like bff and he pretty much ignores me and as you could probably guess i fell for him hard but he doesn't know but my 'friend' does know but she still like keeps telling me about there conversations which i don't want to hear and they sent me pictures of them in bed together before him and his gf decided to take a break and the gf has no problem with this girl but hates me. So i feel i can't trust her anymore because she knows my feelings for him and she being a major hypocrite to what she used to say and i really don't know what to do. Like do i let him know, do i ignore him back do i say something to her? Some advice please guys cos I'm so confused like it's really starting to get to me😢