Don’t tell him to stop calling or engage in listing things he did wrong. It only encourages him to keep it going. Don’t answer the phone and only answer texts about divorce. Don’t make announcements what you are going to do or what he should or shouldn’t do. It only encourages him to twist it that you are the one bringing up how he did things wrong and he’s just defending himself. Or saying he’s just responding to your texts. Just get off the crazy train