Why do I do this?

It seems like I spend all my time worrying about my man. I consume my time with care package making, writing letters , sending letters , taking pictures and trying to make a strong healthy relationship. As a military girlfriend I struggle to keep a good relationship going. I am madly in love but it is not all roses and cupcakes. We struggle with the lack of communication(skyping, text and calling just isnt enough sometimes) and how to you keep the spark in your relationship if you arent physically together? It is TOUGH. Strangely I worry about him losing feelings for me more then I worry about myself. What if he doesnt love me as much as I love him, or what if HE can't handle this relationship. I have driven myself crazy thinking about these things but to be honest I still don't have an answer. My man is not a very good "feelings" guy so sometimes it makes it a struggle to find out how he is feeling. All I can say is I pray and I stand by him each and everyday. I hope things work out, because he is the love of my life. I do not know what I would do if we werent together. I try to not think about it but sometimes those feelings creep up. But, I will not give up on him or our relationship. As long as he sticks by my side I will stick by his.