[quote=Rare]
Tha for the help so far. I will have to think about it more, but I might just tell him in private.
[/quote]

That's definitely what I suggest. I've had a few crushes on female friends (lady bisexual here) and it will probably help to let him know in private that you're bisexual, give him a week to digest, and then let him know of your feelings. It'd be tough, but might break it to him better if he doesn't have any kind of experience with queer people.