thank you so much everyone for you input and advice.
I just want to clear up that we do not own the home, and have only lived together for the past 4 1/2 years.
He is letting me stay in our home until I figure out what I am going to do. he refuses to leave the house even though he recognizes that he will have to help me once I move out. I do not wish to take my children from their father, I want them to pretty much have equal time with the both of us. I don't want to punish them for our shortcomings. They are still very little and will not understand why or what is going on.
Everything is still really raw and I am trying to stay strong but find it so hard to. thank you again for you thoughts, concerns and advice, it is greatly appreciated and helps me to feel supported.