Well, ultimately the choice is yours. I'm not saying sexual orientation is a choice, but you have to choose to identify as one or not. There's nothing wrong with being bisexual (and I'm a Christian saying that!), and you may want to identify as bi-curious for a while until you are sure. :-)
Let yourself feel whatever it is you do. Maybe your bi who prefers men, maybe you are equal in both. Bi's aren't always 50-50 on what gender they like. You don't have to label yourself.
