Shitty friends

A few months ago my two best friends started ignoring me. And then at a football game they finally told me why. I ended up crying on the bus ride home. And many times after that because we had been inseparable. And suddenly we were separated. They said it was because I was having sex and that because I was having sex I was a bad person. Obviously I didn’t believe them because sex is normal (and fun I might add), but it still really hurt me. And now I see the two of them hanging out together all the time and it makes me actually miss them. Well not them necessarily, but having best friends. Now I’m more of a floater and I no longer have a close group of friends. I miss having someone to talk to that’s not my boyfriend or my sister. I’m not sure what to do. I can’t rectify things with them. But when I see them together i still feel like I could go over and talk to them, but when I do they’re weird to me. The conversations are always stilted and forced. I don’t know exactly what I want from posting this. Maybe just some words of advice.