My boyfriend and I have been dating for 15yrs. We have 2 great kids. 3 yrs ago his grandmother who he was very close to died. Last year his mother died and now he has closed off emotionally. We don't have sex anymore and he says that he is afraid of feeling for me anymore because I could die and he doesn't want to get hurt again. How do I help him get through this and get him to start feeling again?