He don't even like me or care about me!

Me and this boy have been together on off for 5 years. He's my high school sweet heart, we had really rough times in our relationship. I just had a baby boy with him. Yes I said I not we. We got into a argument and I was told he cheats on me because I'm retarded and he doesn't like dealing with me, also that he doesn't care about me or like anything about me! In the messages he tells me that the girls he had sex with vaginas are better, tells me I have no walls, my vagina is dry and ect. & when they have sex it's real. They be real with him and he be real with them and not fake like ours! I drove my self crazy to make him love me and I feel really dumb. I was crushed I feel into a deep depression, I stopped talking family friends even my mother and best friend ! I locked my self in my room and I even kept my self away from my son. I'm not going to show the messages because I don't want to re live the moment.