Let me ask you something. Do you live with your first cousin? It seems you are up in arms about your cousins behavior and understandably so but what is making you so upset if you can't do anything about your first cousin's issues? You are asking questions that you should be asking your cousin and/or his wife. We can only "best guess" the situation based on the information you gave us. We will be happy to assist you but I am unsure as to how we can help you with your cousin's current situation.
Let us know ok?