Or it’s, “use your kid as your psychiatrist.” I can’t remember not knowing my dad had affairs behind my dad’s back. I also can’t remember not knowing the story of how he dumped her for his secretary, who later turned out to be a total nutjob and ran off.
I really wish I hadn’t known any of it. It didn’t make me think any better of my mom or even any worse of my dad. Unfortunately for mom, using her daughter that way from a very early age backfired in a major way. From a very early age, it was pretty apparent who the adult was, and neither my sister nor I felt it was her. I still remember hiding under the table when she’d get in a certain mood so I wouldn’t have to listen to stories about my dad. They always wound up with her sobbing hysterically and me holding her telling her she was great.
I’ve had some moments in front of my son that I’m less than proud of, but flipping out in front of your kids or using them as a sounding board for your problems is a self indulgence. Everything shouldn’t be sunshine and roses - they’ll never learn how to argue constructively or manage emotional pain if they’re shielded from all disagreements or sadness - but, in my experience anyway, you can’t do them any good by telling them that one spouse was screwing around on the other.