Depends on the State but in general, yes. Divorce agreements and Judgments are based on many factors. He will not be punished for walking out - but that does give you grounds for divorce. Of course, now that he has walked out you can lock him out and keep him out of the house.

JudyKayTee is right. Everything depends on the state you live in and what items he fights to get.

Why not check with an attorney in your area to find out for sure what your rights are?