Why does everybody hate me ?

I have a boyfriend (he’s not the reason people don’t like me ) but besides him I literally have nobody to talk to. Over the past few years I have lost all of my friends. I think of myself as a very nice person but for some reason people look at me weird when I try to talk to them in school. I don’t know what I did wrong. My last friend stopped talking to me recently because she asked for my advice on this guy she was talking to. She asked if I thought he was a good person and I basically said he kind of looks like a fuck boy. It wasn’t mean and she asked for my opinion but got mad when I told her. How do I make friends when people ignore me if I try to talk to them ?