have to agree with veiled. In my opinion you are making excuses for yourself and for him, there are no excuses for his behavior. You need to go to the nearest police/FBI station and turn in the computer. You can get assistance finding a place to stay in small or large communities through the police department and various church groups/ etc. If need be, call a crisis center first. Just do something for yourself, those children, and any future children that could be effected by the person doing this shit! In my opinion the only right now you need to deal with, is immediately taking care of this. This isn't about having money or the right place to go - it's about doing the right thing.
I'm sorry that you are going through this and that he chose to put you in this position, but you need to stop it NOW!

jmp