Lost,
Listen to the good people who have posted here. Your story actually made me sick to read. This person is a hideous manipulator period. Alcoholism and recovery aside. What else is there that you don't know? IMO anyone this aggressively pushy behavior is almost more scary than the lying. Go no contact and watch your back. Change the locks if he has a key. Do not get in any deeper than you already are. Mistakes happen - lies happen - you know more facts now - forgive yourself and move on. Protecting you and your son that should be priority #1.