Here's the archive today link.

TL;DR Wife initiates FMM threesome and husband ended up not liking it.

But what I want to talk about is this particular quote from the story.

... I feel hideous after giving birth to (baby). It's almost like overnight I went from a size 6, 23 year old confident woman to being this bloated, tired mother. I look in the mirror and I don't see Bella I just see (baby's) mum! I know you did your best to reassure me that nothing had changed but nothing seemed to make a difference. The only thing that did was when John started complimenting me... I don't know, I guess I knew deep down that you would always desire me no matter what. It felt amazing to know someone else still found me desirable... I know it's childish, that is how I felt...

So, she cheated on him with his friend because she "felt hideous" even though she has a firm lock with a husband and provider. John starts to compliment her and she felt good because "deep down you would always desire me no matter what".

NO MATTER WHAT

And that my friends, is why you always have to play the game.