I’m falling hard...and it scares me

So I knew of him in high school. And he eventually started talking to my best friend. Well that was almost 2 yrs ago. Anyways he’s in the military and I was. We had the same job and I was actually supposed to go to his unit. Well I got hurt and had to come home in November. And he was home on emergency leave. Well everything started by us hanging out and hooking up one night. Well fast forward to December we’re both home at the same time again and of course we hook up again. We talk a lot. Well for the past month and a half he’s been being really sweet. And he’s treating me like a fucking queen even though he’s currently deployed to Korea. I haven’t been able to see him since December and I won’t until next December when he comes home from deployment. But he told me the other day he didn’t think he would fall for me. But he did. I told him I honestly never expected him to talk to me again after that night. But he said there was something about my voice and the way I kissed him and he couldn’t leave me. He’s told me he loves me and he’s not sure if that’s a good thing or not. But I starting to think I love him too. And that scares me because what if one day he decides that I’m annoying or he’s tired of me and leaves. I’ve never felt this way about anyone before. I just pray this actually works out esp. with the distance thing.