Boyfriend told me earlier this morning that he's most likely moving back to the east coast. I feel awful, Reddit. How do I even begin to cope with this?

We haven't been dating too long. About 7 months, I believe. [I don't keep track of those kinds of things :\ ] But we have been super close since we met. I had pretty much lost all trust in men before meeting him. I'd been in a really abusive relationship and had all kinds of issues when him and I first met. He's been there for me since before we were dating. The best friend I could ever ask for, and the most patient man I've ever known. We had even started talking about a future together. And it all fell apart this morning when he broke the news to me. I'm completely lost and have no idea what to do/how to even begin coping with this mess. Its inevitable that he is going to leave and I don't know how I can continue a relationship knowing that this is all going to end. We've been living together for a while now, and are probably going to break the lease so he can save money. I really don't know what to do. I feel like shit. I know family is important and I want him to be happy. I love the guy a lot and I'm completely lost.