My boyfriend is going back home for the summer (4 months), what to do?

We’ve been dating for a little over 3 months. He is going home for the summer break (May – September), which is 3 hours away. We’ve been trying to decide whether or not we should stick it out for the 4 months and have a long distance relationship, or if we should take a “break” – and possibly pick up where we left off, when he comes back in September. I think that’s what he wants. But I’m worried that we’ll just drift apart in the summer and it won’t be the same when he comes back in September. I’m afraid that if we take a break like he seems to want, he’ll move on. If we do decide to stay together, it would be 4 months without seeing each other at all (or maybe once or twice if I’m lucky). I’m kind of stuck. Do you have any advice on what to do? I really want to make the relationship work… but I just don’t know…

We are 18 and 19 years old if that helps.