Legal Question in Family Law in California

You start by deciding if you want a divorce or not. If you do, you have to decide whether you want a lawyer to help you or not. Until you decide those two things, you can't do anything else.

The best thing to do right now is to speak to a family law attorney, at least for a consultation. California is a no fault state, meaning you do not have to prove fault to get divorced. The caveat to this is the fact that he is having affairs is not relevant to your case, and the court will not want to hear about his infidelities.