Relationship

My boyfriend and I are graduating high school this year and I am planning on moving away and going to college and he is coming with me. But he says that if we don’t move in together right away he might not come and he doesn’t think we can do a long distance relationship. I don’t know what to do I don’t want to break up and I mean I know We are young but I want to build my future with him. I don’t know what to tell him.