Fuck me, I seem to have beat the normal trend.
As Shmeee will know as we went through the same thing at the same time, my charming ex also had an affair, with a work colleague, an equally as dull, grey, work obsessed c*nt as her, and left me for him, breaking the kids hearts.
My ex was the predominant wage earner, as I had left my job due to a car accident that left me with a permanent injury stopping me doing my job anymore.
Luckily I was pointed in the direction of a good solicitor, and got 60% of the equity of the house, in agreement that I didn't go after her wage in the future.
Whilst I still think she got off fairly lightly, as it would have been great to have let her work know and made her look the shit she is, I got a good deal, met someone new, got a new house, my kids like her, and get on with her boys, and whilst they are fairly ok with my exs partner (still the same work colleague who now lives with her) they are far happier when they are with me, so much so my 18 year old son is with me most the time, and I have my daughter a week on a week off, which is better than could of been.
I still feel some resentment, but my ex loves her job and herself more than anything else, so I am happy to be shot of her. My finances arent a patch on what they used to be, but im happy with my new partner and life is far better, than the pit I was in when I was first shat on, and I am now much much much happier.