Technically, a spouse who moves to another country is still supposed to pay child support. Legally, though, it can be very hard to get him or her to pay. The reason is that many countries do not have standing laws and agreements saying they'll help if a spouse flees over the border to avoid payments.
It's possible that your spouse will be so against the idea of getting a divorce in California that he or she will refuse to sign the papers. If so, what should you do next? Does this mean you're not going to get the divorce that you want?