Does he just act sweet so ill have sex ?

just started talking to this guy im 16 and he is 17 and hes had sex with a few ppl and ive only had sex 1 time so i think its a little akward and i just dont know what to do because he asked me to send a pic and i automatically asumed that he ment a body shot so i lied and said i dont have a camera on my fone and idk if thats what he ment and i rly like him but idk if i ruined it or no like idk if hes busy or not but he isnt txting back and he has like 600 girls on fb and i feel like hes saying some of the stuff he says to me to them too not that it matters cuz we rnt dating so what do yu think am i over thinking stuff