Why am I so addicted to being a fuck head

I’m so lonely that I jump at the chance any girl would shows any interest. Every time I think a girl is literally interested in me they ask for nudes, my horny mind thinks yeah I can trust her so I send pictures but than they block me. I know they are never interested in me but I keep thinking this is both love and sex but I’m left embarrassed and ashamed.

Sorry for any poor spelling and grammar I’m stupid