I just can't decide.

I'm having trouble making sense of my emotions so I guess that's why I'm writing this. Im not sure if im bisexual or a lesbian. I have a boyfriend and last time I saw him(a month ago) we were intimate and I enjoyed it. But it seems as of late, my body doesn't really crave men as much or as frequently as I used to. Not to mention when I have "spicy" dreams men aren't in them only women. Am I bisexual with a preference towards women or just an all out lesbian? I'm very desperate for answer to my question the last few days have been a hell of indecisiveness.