About to start long distance...maybe

My boyfriend and I have been together for 9 months. He is my best friend and the only person I talk serious things to. He is moving in about a month to his moms to help take care of his little siblings. I feel bad because I don't want him to go. I know it's selfish but I need him here. and we've had this conversation before and he thinks I don't get that he is going for them. I know that. But what about me? Im all alone. I lost my mom over a year ago and my dad isn't the same. he is distant. I have a terrible life at home and he is my get away. yeah I have other friends but they are too busy and I live in a small town. Im scared about this and I don't want to break up at all. but should I let him go so he can be happy without me?