You say it has happened to you.....but in an post in Newcomers you say that your W would never betray you. So my question is how did it happen to you....especially if you were virgins when you married and your W has never betrayed you?
If you are referring to the situation with your cousin then I disagree with you that it has happened to you. It's just not the same. Perhaps your family are being extremely wise by not getting involved and you should listen. I have seen time and time again when a third party to a R gets involved and is full of righteous indignation for the BS....only for them to find the couple where the infidelity took place remain together and the third party, (who they thought were offering support), got left out in the cold.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength