What Am I To Do?

I will start off by saying that I love my boyfriend very much. I trust him completely and he is honestly my best friend. However, I am beginning to feel unhappy in our relationship. I don’t know why either. I’m not falling out of love, but I don’t want to be upset all the time either. I really don’t know what to do in this situation. The worst part in my opinion is he doesn’t seem to see it. Whenever I try to talk to him he just tries to fix the (perceived) immediate issue. I really am at a loss here.