dating a bi-guy?

Have any of you lovely ladies dated a bi-guy before? I've gone on a few dates with a guy I've know a while but recently started to become involved with. He's sweet, a little goofier than I usually go for, and ridiculously good in bed. He also watched 10 Things I Hate About You with me and joined in my drooling over young Heath Ledger. Opinions? Stories? 
Edit: I thought that the Heath Ledger thing was funny/cute so not a negative comment about him.