So my guy has been divorced from his ex for a couple years now and even claimed the relationship was long dead before the official split. They even have a child together that is pretty much always with my man. My problem is how much she hits up his phone. I understand theres a certain level of communication involved in co-parenting but this is unreal. She calls and texts my man at any hour about stupid drama in her life. She calls him when shes feeling sad or mad. Often times when hes not responding to me i find out hes been on the phone with her. When i first started dating him he mentioned that she has a lot of mental health issues and they are just friends. I trust that hes not romantic with her, but how do i get him to set boundaries with his ex?