Please help.

I apologize this is so long but please help. So last night I finally worked up the courage to talk to my boyfriend about what will happen if I go to medical school in September. I'm currently waiting for the admission decision (June 10) but the thought of moving all the way across the country has been bothering me so much. I was going to wait till after but it slipped out last night and he told me 'if you go then you should move on with your life'. We've been together 6 months so it makes sense but I feel like my heart is being ripped out and I keep breaking down crying. Part of me feels used for sex or to just have a girlfriend because he doesn't seem torn up about this at all. But I know that he's not that kind of guy. But what's the point of staying together till I leave if that's the end of it? Do I just walk away now when it might hurt a little less than 4 months from now? Part of me wants to talk about try LDR but I feel like he's already made up his mind. I'm in love with him and the thought of not having him in my life is just devastating. We've never said I love you but he does and says so many things that make me think he loves me and now I can't help wondering if he just doesn't want to say it because it might make it harder to leave. But then maybe this relationship doesn't mean anything to him which is why he's able to just let me go. Do I tell him all this too? Or just go along with him plan even though it feels like this is going to kill me inside. 
I don't really think there's a question in there at all. But any advice/answers would be so helpful. I'm just so lost and confused right now.