Love Vs Dreams..Navy Vs Love?

I am in the DEP for the Navy.. It has been my goal for pretty much my entire life. Everyone in my family is proud of me. But the problem is, my fiance is crushed by the fact im going in. He wants me to not go in and i can see it from his point because when were apart it hurts but i feel like my place is in the navy and with him.. how can you choose between the two things you love the most? The navy is my career but he is my life. Any advice?