Look for help from friends and family, could one of them move in with you and help?
I went through a divorce and got laid off at the same time so I know how hard things can be. I got through it got a new and better paying job, kept the house and kept my child.
You have to think what is best for you, a guy you can't trust and might bring something like crabs or vd home? Is gone for days and neglects his wife and children?
There are many places willing to help, WIC, etc.
draconis