不要搬出去，

你可以提出离婚，找一个很的律师，你丈夫会陪很多钱的，对于女人来讲，在美国离婚实在很好，you can be a housekeeper and get alimony, which may or may not be enought for your tuition, but will be enough to support your life until you get a job or get married again. So it is a good deal.

The facts that your kids do not live with you will hurt your case because it shows that you do not love them enough (no matter what you explain -- American way is to raise children by yourself).