feeling used

You know that shitty feeling when a guy tells you he's not like other guys and that he's really into you and makes you feel special and then your sorry ass falls for him and you have sex then he doesn't speak to you at all. We went from speaking everyday to basically nothing. He's ignored me and I can't help but feel used and horrible about myself. Did I do something wrong? Did he not like my body? I guess it just feels like all my insecurities about myself are true. I hate my body and myself in general. He basically just proved that by leaving me :(