Divorce Support Forums: Advice wated

I've been with my husband since I was 16 and we have been married for about 2 1/2 years of that. When we were both 20 we joined the Navy and got married about a year after that. He was stationed in Italy and I am in Washington State. We both knew it would be hard and that we were going to give it everything that we had to make our marriage work. At the end of the year we got married he ended up getting medically discharged from the navy and went back to Florida. Well I understood for the first few months that he needed to get things taken care of back home but a few months turned in to a few years. I left for deployment at the begining of the year and I've only heard from him once. When I did hear from him all he could do was ask if I was still alive. That killed me inside and I decided that I was going to get a divorce cause if he really wanted to be with me he would have moved to Washington a long time ago. Now we are heading back to the states and I am less and less sure on what to do. Just the thought of leaving him is making me sick to my stomach. I just don't know what to do anymore. On one hand I leave him and don't know how my life will turn out. On the other I stay and who knows if I will ever be with him for more than a week at a time. If anyone has any advice please help me.