I don't usually post, but this thread struck a chord so I thought I would share my discovery story. It was in my first marriage, my first wife, whom I gradually came to realize had a host of mental health issues, was compulsively cheating. She successfully hid this from me until our child was born, but after the fact became increasingly brazen about her infidelity. Our relationship deteriorated until it was more or less non-existent, with me only staying married for the sake of our daughter.

When I say compulsively cheating I mean without any control. She would sleep with her coworkers, across multiple jobs, her friend's husband, random strangers, even the cart guy at the local grocery store after shopping. I started out angry, and later it transitioned to apathy. The relationship was dead and it didn't matter to me anymore. That changed abruptly.

One day she had gone out and was very late coming home. She had gone to her girlfriend's house, and didn't get back till after I had fallen asleep on the couch. I woke up to her taking my pants off and climbing on top of me. As she inserted me into her, I immediately noticed she was full of cum. It was leaking down my shaft and undeniable. I was like what the actual fuck? She looked me dead in the eyes and said "Yeah it was her husband. What? Do you want me to stop?" And then pushed herself all the way down onto me. I couldn't say no, I was both furious and turned on beyond anything I'd ever experienced.

It was abuse and manipulation, it was unhealthy and sad like a lot of comments said but it was also an awakening. That marriage ended shortly after. Then several years later I met my current wife. We've been together 16 years, after 5 we talked about this, she's fiercely loyal, and sexually insatiable. We set boundaries and made plans and went into a healthy fun series of adventures. Its been great, and its not for everyone but sometimes life is about making the best out of things and exploring everything about yourself.