No matter the origin of the divorce, no matter how amicable or nasty the couple are - it is still a very very unpleasant process. You just can't get around that fact.
I just kept in mind that once the process is over then I would no longer be tied to this lying, deceiving, backstabbing, family-killing, worthless piece of adulterous shit.
Once I made the decision to file for divorce I knew that I NEEDED to get a divorce. She asked for reconciliation after that.
There had to be a consequence for what she did - and she got it.