i have experimented enough personally that i know i like sex with men and women, but i only have ever liked, loved, and fallen for girls. ive had boyfriends, but there is no emotional attachment, no crush no chemistry. someone help me out.
You can only move in the direction that currently feels right. I could speculate of course, but for now I would focus on women. There's nothing wrong with hetero flings or anything, just be honest.
"Bi" simply means that you have an attraction to two genders. That attraction need not be equal for both those genders.
Bisexuality is seldom (if ever) a 50/50 split. Some bisexuals feel physical and emotional attraction to both, some feel only both for one, and one for the other--and sometimes it fluctuates depending on environment. If you're more into women, there's nothing wrong with that. It doesn't invalidate the way you've felt for men nor your experiences with them.