Would would you do if you were in this situation?

This may be long but I need some help! I am in a bad situation with my husband. He has been telling his friends & family that I have been saying things that are not true about him & also that I have been saying that he has done things (which he has) but he says he hasn't. You see he has a bad memory. I have been told by a family member that he has been very forgetful all his life! Now thee is people out there that DO BELIEVE HIM...THEY THINK THAT I AM LYING ABOUT HIM...WHICH I AM NOT! I have no reason to lie about him. But anyway he is giving me a bad name. And he calls himself a preacher! He has preached many of times but he has no Church building because he can not afford one. If anything he is a big hypocrite & phony. Anyway he also told me tonight that if one of my friends calls here (a lady friend) then he is not going to tell me when she calls me...he does not like her. He said that she is NOT ALLOWED TO CALL HERE & TALK TO ME! I told him if he does that then I will not tell him when a friend or family member calls him. I said if he can do that then I can too. He said if I did he would have the phone shut off! Now isn't that something? I am very seriously thinking about moving in with a friend of mine out of state because I hate this marriage & I can't stand him. He tries to dominate me & control me. at times. I have had it. I have only been staying here cause of my son here & because I have no job or money.If my son was not living here (he is 19) then I would have left. But I feel that I am sacrificing my life for my son here.If I left then what would happen to him? He has no job or anything at all. I worry. I love my son.I don't want him to end up on the streets! Husband already told me many times that if I left then he would kick my son out. I am in a situation here.