BJ0909,
You may be feeling unreciprocated/unrequited love, meaning the other person does not feel the same way as you and it can potentially set you up for a lot of emotional hurt. Yes, understand you do feel for him, but at the same time, understand the other person can use you, if he does not feel and is caring towards your needs.
Been though it many times as guy, some infatuation of course, but now on female hormones, I am super careful and only allow myself to feel when others feel(ie. put my heart on my sleeve), or else, bah, no matter if their king or queen of the universe.
I'm in a loving relationship with my girlfriend of over 7 years now, others wonder, what the hell, do I see in her, but as long as we both love and understand each other, its all that matters in the world.
Both of you have to be mindful of each other's feelings and wants, or else its no go.