As the title says really. Really fancy a colleague at work and it's made me realise I'm a bit bisexual! Have been in a long term relationship since early 20s (married with kids now) and didn't fancy girls in my teens. Feel overwhelmed with the desire to experience this and constantly fantasising about it. Looking back over the last few years I've had crushes on a few girls and thought all women did. This is the first one that's overtly sexual. A couple weeks ago she confided in me she was with a woman for 2 years even though now she's in a serious relationship with a guy. Help!