Unless she is physically assaulting you, you cannot get a restraining order. You can block her from contacting you on your cell, Facebook, other social media and email by going onto your provider's website and blocking her. If she contacts you, tell her not to do so again or you will call police. (Unwanted contact can be the crime of harassment.)
Your divorce lawyer can handle the situation with the bills being paid - if he is court ordered to pay them then he can be held in contempt if he does not. Follow the advice of your divorce lawyer, continue with your therapist and perhaps ask to find a group with whom you can meet and share experiences so that you will be assured that it is not your fault in any way.
You really can't. You block all forms of contact with her but on the other hand, if the therapist is coming down on your side, may you should let her continue since she's killing his case. Turn everything over to your attorney. If you allow the texting, you don't have to respond. Turn everything over to your attorney.
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