Long Haul or Long Shot?

As an eighteen year old girl it is only natural that I struggle in the boy department. If you have got boys figured out at eighteen go ahead and message me and tell me your ways because boy, do I need some help. I recently became involved with this military boy. By recently I mean the last time I saw him was two moths ago. Just as we were getting started into a fun dating/relationship situation, he had to leave for boot camp (I know, depressing right?). So, I have sat around all summer wondering if his reassurances, that everything would be the same and he would be just as into me as before he left when he got back, were honest. These contemplations are what arose my question, is this actually going to be what he wants (long haul) or is this going to be another boy yet again making false promises (long shot)? I think the real question should be, why am I spending so much time worrying about another boy who will despite what I do or say, do what he wants? I totally get it, if someone professes their undying love for me and I don't feel the same way, I am not going to be with that person, I am going to say thanks but no thanks (in more or less words). I'm sure every girl does it, but I need to stop letting other people control my stress level and determine my happiness. I'm taking control of my life, it's time to start letting the situations go that are out of my control. If it is what God wants for me, then it will happen. I just need to learn to have a little more faith.