You must reply to his petition

If you don't reply his petition (agree or disagree) for disolution of the marriage before the deadline (one month), the court will assume that you agree with his petition. If you select dissgree, you should hire a lawyer to fight for you on the court. I don't know which state your are residing in. Now in most of the states, the "no-fault" rule will be applied, which means that once one party want to divorce, the court will devorce the hu*****and and wife and make a decision mainly focused on property seperation, alimony, and child related issues without taking into account other factors.