I cheated on everyone I dated until my husband. I think some of it was my bipolar, especially the one night stands, but some of it was just stupidity and instability. I ran around with a girl I was quite interested in when I was in a brand new relationship with my husband (like in the first month). I stayed at her house a couple of nights but we never got further than making out as she told me I needed to choose (she knew I was also dating a man). It was a hard decision as I kind of found it as a cross road: do I want to be with a woman or a man the rest of my life? I told my husband about it 6 months after and he was pretty upset that I had waited so long to tell him but he did forgive me. That was 12 years ago and I haven't cheated on him since, certainly not while I've been married. I fear when I am manic I will leave him for a woman but in reality, I think that it will never happen.