This is one of the biggest red flags for bipolar - impulsive behavior like sex (and binging, spending, reckless driving). While it is very common that doesn't make it any less of an issue.

The worst part for me is that I'm married...but I still did stuff.

Not good.

I don't know what to tell you except that you're not the only one. (and I'm not even sure if I'm Bipolar or Borderline yet...or neither)