Welcome to the board hun, glad you found us and posted.
You don't have to stay in this relationship if you don't want to and the things he is saying to you is just another one of may controlling tactics that abusers will use to get you to stay with them. It's all part of control and they will do anything and everything to control you and get you to stay because they feed off of it. I can tell in the tone of your post that you are just emotionally drained, but you do have a right to live again and live a life free from abuse. I know you don't want your kids to stay in an abusive environment. You and your kids deserve so much better.
If you look at the board website which is down in my sigline, just click on "dealing with domestic abuse & helpful resources" it will take you straight to the board website and their you will find tons and tons of helpful information. You may also want to look at www.womenslaw.org to see exactlly what your legal rights are there in the state in which you live. You can also contact a local DV center and sw/an advocate, one that will help you get through all of this and help you even further and perhaps, go a step above and beyond.
Hopefully the others will chime in to. Even though this board will be merging to Recognizing & Dealing w/Domestic Abuse in another week, we do hope you will continue to be a part of our community. I will be there as well. Never hesitate to give us a shout. We are here and we care and please keep us posted. There is hope and you & the kids deserve a happy and health life. (((HUGS)))
Love 
