Most Helpful Guy
He's a douche. The simple fact that he showed nudes of you to his friend and he's at least 28 years old shows that he's an immature douche. Be thankful and move on away from this douche.
Most Helpful Girl
He doesn't love you. He doesn't respect you. He has made this very clear. He doesn't want to be in a relationship with you. You are not special to him.
Why, exactly, would you stay with him, given that all of the above is true?