Have you ever dated a busexual guy? And is it different than dating a gay guy?

I dated a bisexual guy who was in an open relationship with his girlfriend. Noticed in him that he had less of a problem with my feminine side and actually had fun with it. I felt way more comfortable than actual gay guys because up until now my dating life has been filled with men denying their feminine side and criticizing mine.So what do you guys think? Different or an isolated experience?