So long story short, me and this guy started being FwB last Aug and at some point I became pretty attached and jealous when he even talked about other women (which in my defence, I think was a pretty normal reaction to the circumstances - we called each other petnames and had a thing that was overly intimate for fwb, I think) but we continued anyway.
This Aug he said (after me crying in a restaurant because he said to me I expect too much from a friendship) that it was a bad idea for us to have ever started having sex, but half an hour later we had sex anyway. However he made excuses not to see me after that (he said that he would probably come over on the following weekend but that we would just cuddle, no sex, in the end he didn't come over at all).
In Sept, without explanation, he started behaving as more than a friend again.
The other day he mentioned how a girl he talks to says she gets horny after her period and I was like, you talk to other girls about sex? and he was like yeah, do you have a problem with that? and I said to him that I don't want to be one of a whole bunch of girls he talks to about sex, and he was like, can we still be friends after getting married to other people? And I said no. I wouldn't want to stay friends because I would be jealous! I know I don't have any claim to him but it's still how I'd feel. He said that if I'm going to be jealous, we should just be friends. After we talked some more he said that we shouldnt continue being friends if I think we shouldn't continue to be friends if he dates someone, because he doesn't want 'to be forbidden from this right'.
A couple of days afterwards I asked him if he's dating someone and he wouldn't tell me, and he said that he likes me and wants to be friends but sex ruined our friendship, so we shouldn't have sex again and we should be able to date or get married to other people without either of us being hurt, and if that's not possible it's not possible for us to be friends. I didn't want to say 'guess we're not friends then' and I was in a stupid mood so I asked him why we aren't dating, which from stuff he said before I thought was because he isn't in love with me, but idk, because if he is dating someone else I doubt he's in love with her - if he was, why would he say he misses sex with me and talk about how I look cute when I'm asleep and stuff? He'd be focused on her, surely.
Is there any way I can fix this situation and will he ever want me? I used to get the impression that he thought about having a relationship with me but had very mixed feelings about it (and I pushed him further towards 'no' by being clingy, crying etc). I also have mixed feelings about having a serious relationship with him but I feel like I love him (?) and don't want him to be with someone else (yes, I know I'm selfish).