Most people "monkey branch". They make sure they have a good hold on the new person before they let go of the current person. Those of us that arrive here are the ones that got let go of.
Secrete affairs are very addicting for the people involved. Part of the allure is the secrecy.
I see comments above say "dating"...from my observations, I personally believe that word should be replaced with "having sex".
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712