My dad cheated on my mom after she cheated on him but my mom dealt with the crap my dad made her deal with in a one time screw but my dad found a decent lady who was just lonely and thus became a mistress for a while. I am no judge of either happenstance but my mom and dad did this to each other. It takes two to tangle and my reply here is just to tell what happened.

My dad wanted to see his mistress while my mom was at work one day and he actually brought us to a playground with her and her children around. Everyone was nice and playing but my dad said, please don't mention anything about this day to me. My sister was way too young. I was only 9 or 10 and I didn't think of what he was trying to ask me.

So one week or so later my dad's mistress is in Kmart and she is pretty, sweet, and smiling at me and I wave to her back. My mom asking me who she was figured out dad's friend and the fighting ensued.

My mom and dad had the most amazing sexual relationship and fucking around wasn't their goal. My mom was driven to it by my dad's own stupidity and vengeful actions he later regretted of course. Their lack of communication caused this.

All of this is from the 1970's and my sweet mom is still alive. My dad whom I loved dearly passed. They both regretted everything but didn't know how to calm the other in their pain.