House rights

My kids dad and I have been having major problems. He sits on a video game all day long from time he gets up til he feels like going to bed (which can be 3,4,5am.) he doesn't spend time with our boys. He doesn't go to work because he owns his own business and has workers he pays to go and handle the jobs and makes sales while at home. He makes really good money with his business not having to do really much at all. I have been a sahm for a while because we don't have family around to help with the kids and he always says he never knows when he will have to be out of state for a job so I can't ever feel like I can commit to a job. I'm also 15 weeks pregnant with our third child. He doesn't care at all that I'm pregnant..he doesn't act like he cares about the kids we already have at all. He will literally just sit in there and play his game all day long and have nothing to do with us. He expects me to cook, clean, do laundry, take care of the kids..everything all day everyday while he sits in there plying his video games. If I get to a point where I'm just so fed up with him not spending time with the kids and helping with anything and I say things to him like I don't want to do this anymore we deserve better..he blows up and cusses at me and yells and tells me I have to leave. He is telling me he is going to talk to a lawyer and have me evicted out of the house. My name is on the house and I don't think that he can do that but I really don't know how all of that works. We share the house equally. We signed everything equally. We live in Georgia. I really don't want to be here and if I had a good job and a plan of where to go I would go. But I also really just don't want to pull my son out his school we just put him in when we moved here in October. He was diagnosed with adhd this year and has had lots of issues in school for years and now has a group of awesome people at his school working with him and I and a great doctor that's been trying to help us. I'm the one that handles all his school stuff and doctors appts..I have always been the one to handle everything for my kids. He literally just supplies money. I'm just at such a loss and I'm tired of living this way. My kids deserve better than he is willing to give them. I'm so tired of my kids having to watch their dad just sit in a chair on a video game all the time. I'm sure my 7 year old wonders why his dad cares more about that than spending time with them. I also hate that he hears his dad threaten me and call me names and talk to me the way he does. We have been together for 11 years and we are engaged and things have always been back and forward with his gaming but things have just gotten worse. I'm so lost and lonely and I just don't even want to be around him. He literally just told me if I tried to keep the kids from me he'd have me killed. He obviously psycho. I literally have never said anything about keeping them from him but when he says shit like that I don't want them to be alone with him. I don't even know if he would take care of them properly if he had them alone because he can't give them the time of day. I have to ask him to change diapers because he's always occupied and my baby has gotten a diaper rash from waiting for him to change him when he got done with his game..so I just usually do it myself. I don't have family that is there for me either. I have a dad who has never been there for me or my kids and my mom died 5 years ago which is still so hard on me because she was the only one who was ever there for us. Anyway I'm sorry I know this is long..I just don't know what to do. I hate that this is my life and that my kids have to experience this.