Well i think its because I spent most of my 20's absolutely fraught with dread that my boyfriend would cheat. To the point I had constant nightmares about it. And I just decided I had done more worrying than if it actually had happened and that was ridiculous. And so I started thinking about how I would react if it did happen and decided I'd much rather be dignified and besides having been a cheater I wouldnt have any right to be so judgemental.
Jeez at this rate by 40 people are gonna be paying for my little gems of wisdom! LOL!