I am completely irritated and annoyed by my oldest sons father. Our son is starting school soon and he has refused to help get any of the school supplies or school clothes. I find it annoying because he is our sons father and he should also be responsible for our son. Also he cancelled visitation so he could go to a BBQ. This is why I get annoyed because everything comes before our son. I told him this and he called me a bunch of nasty names. How should I handle this situation?