I want to be wanted

I just want to be wanted like got a actual relationship and not sex. Every guy tht tries to “talk” to me only wants sex and no attachments. I can’t do tht i get attached. So I’m 21 and never had a boyfriend. I’m not a Virgin but I’m not having sex again until i have a boyfriend. Why don’t these guys like me enough to date me they only like me enough to want to have sex with me.