I’m sorry to hear about your spouse’s behavior. The content of what she is saying matters. Questions to consider include, whether she is telling the world embarassing facts, whether you have children and how her statements affect them and your relationship with them, whether people are believing any false statements, the capacity for her statements to damage you personally and financially. Free speech is a good thing in general, but not if it hurting someone. This sort of behavior may be brought up to the Court, potentially as a violation of the automatic injunction that enters when you have a divorce case pending. You may also obtain more specific orders for civil behavior and violation could cause the Court to issue a contempt citation. There are things that can be done upon further analysis of your situation, but I do not think here is the place for you to describe or even post the things she is saying about you. I would recommend a private consultation with a lawyer.