Just told him to leave....

little back story, we are in the process of divorcing, have to file the papers, but my part is done, signed and notarized. He was supposed to be gone before Thanksgiving. He is still here.

He came home today from a business trip, his dad and sil was here and he saw a bill on our counter and flipped out. He turned into a huge ass and was stomping around giving me nasty looks. I told him twice that the bill was a mistake and I was in the process of getting it corrected. It was a chiropractor bill that we thought our ins. was covering some of and I had been making payments. He knew all of this prior to the bill. He never heard a word I said, completely ignored me.  He turned into a total jerk and was accusing me of not handling the money and being immature and I told him the chiro wasn't even charging us (not true, I don't know where he got this, but it's what he does makes up stories)   and I did get a bit loud for lack of a better word. No attitude, no bitching, just loud, it's what gets his attention. He started this huge fight with me, in front of the kids, and is going on and on about how much of his money I'm spending and this is bull ***, and after about the 6th time of trying to explain, he admits he knows I've been paying and it's not just me it's for the kids too, whatever I asked him to stop, I didn't want to talk anymore unless it was about the kids or the divorce and if he couldn't respect that, he needed to leave. He kept fighting, I just repeated myself.  Then told me he wasn't going anywhere, it was his house and he built it with his two hands, he wasn't going anywhere and i needed to grow up. both kids are sobbing. There has been no yelling or arguing all week, he's been home 30 minutes and it's a scream fest with sobbing kids.  I can't take this anymore and finally said it's my house, you didn't want it, it's in the paperwork that it's mine and you keep telling me you have a place to live, why are you here???
I have no idea where this post is going, just a huge vent I guess!!  He did end up leaving and I finally got the kids calmed down, they are actually laughing and having a good time now! I am just so tired of this. I'm a sahm and have been trying so hard to find a job. His most recent manipulation was until I could prove to him in writing that I would be financially fine without him, he would go no where. Even now, he's gone now, but he will show up tomorrow acting like nothing is wrong and call me names for not letting things go and to quit holding a grudge. Not sure how right or wrong it was, but I told him not to come unless he talked to me first and I was here. He doesn't have a key but will break in if need be. 
Anyone else a sahm and go through a divorce? I am so scared I can't do this. I know I can handle the kids, he does absolutely nothing it's the money and no job right now that is scaring me.  Thanks for letting me vent and making it this far. I'm not even sure it made sense!! lol! I guess I'll be here a lot! Any advice would be great!