Is my husband being abusive?

hi. I hate to be on here asking this question but I need answers and this is where there are supposed to be answers! When I met my husband he had just finished with an ugly divorce and had a young son. We were just friends at first and he used to tell me about how his ex wife was very neglectful to their son and how he was always the one taking care of him. He told me about how he suspected that she had "mental problems" and about how she left him and stole his son from him. He really played himself out to be the victim and I believed him and felt sorry for him. We were both in the military and after being friends for about 6 months we started dating and it wasn't long after we moved in together. At first there were some things that seemed off about his behavior (clinginess and pushiness) but I figured it had to be because of how he was hurt in his last marriage. We had two little boys of our own after about a year. Well after we both got out of the military we moved to the state he was from for his son and that is when things changed. I wanted us to get a place right away but he insisted that we should stay at his moms for a couple weeks until we found one versus picking one before we got there. Once we started staying at his moms all hell broke lose! He became very rude and sarcastic to me around his family and I caught him talking badly about me to his family. Two weeks came and he tells me that he wants to buy a house and we should stay at his moms until we can close on one (mind you he is unemployed and had been for a year at that point). I told him I didn't feel comfortable buying a house when I haven't even learned the area yet. Weeks went by and his behavior towards me only got worse. Everything seemed to be about him and every time that expressed my needs or feelings I was told I was "nagging him" or giving him a "guilt trip". He started telling me that he thought I had a "mental" problem and that I should go to the doctor. I knew I didn't have a mental problem and that it was his behavior that was making me feel depressed. One day he tells me that he is going to have me committed when I told him I was tired of being treated the way he treated me. I told him that I was not "crazy" and that if this was how I was going to be treated then I didn't know if I wanted to be with him. He told me to leave his mothers house and told me that I couldn't have the children! Mind you I came to this state with no family or friends for his child and him so I had nowhere to go! I apologized to him so that he wouldn't kick me out and waited til the next day and ran with the children back to the state where I'm from! He tried to file a "protective order" against me for the kids stating that I was mentally unstable and that I was a danger to them. We started a custody battle. Well my dumb a** started to believe him when he told me that he had changed and that me and the boys should go back. We went back because I hoped that there was still hope for our marriage! Big mistake! Its been six months that we have been at his mothers and he shows no interest in us moving out! Him and his family talk down to me like I'm a dog everyday and undermind me as a parent to my children. Every time I tell him that I am not ok with being treated this way he tells me that I have a "mental" problem and tries to get to me to go to the doctor! I think he is just trying to get leverage over me in the event of a custody battle and I'm scared! I can't leave him because I have no family anymore and I don't have any way to support the children and he plays dirty and he would never let me have my belongings or the children if he could help it! Is this abuse?