Wow, It sounds like you have a lot of drama in your life. I think you should concentrate on your self confidence! Try not to worry about what someone who said he could do better will say or do! And him trying to blackmail you with pictures you took in private. I say he is low budget and YOU can do so much better because you seem to have a good heart and a conscience. I think your mom may be upset if she saw such a thing, but do not stop that from telling him to get lost.
Dont worry about another man right now....work on yourself....Hang with people that know how wonderful you are! People can be mean.......Like I said work on you and never forget all your assets! Anyone that tries to make themselves feel bigger by making you feel small is not acceptable and please dont listen, turn and run!!!!! Be good to you!!!!