The decision of whether or not to pursue the order of protection is in the hands of the District Attorney. If he was arrested for violating an existing order of protection, the issue becomes whether or not he violated a court order - not whether or not you wanted him arrested. Moreover, your cooperation is not required for his prosecution. If you do not want him prosecuted further in the future, do not have any contact with him. As long as there is an order of protection in place, he can be prosecuted for violating its terms whether you consent to having contact with him or not.