[Gráinne]

I also agree it was very brave of you to share. And it's certainly your choice.

I too fell in love with a woman when I was married. She lived in a different city, but we had a sometimes physical and a very much emotional affair for over a year. Ultimately, it ended because I didn't want to hurt my husband, who was and is a good man and father. She had a partner with whom she was having problems, and I didn't want to be an escape. Both of us had to treat our partners with honor before getting involved with anyone else. That, to me, was keeping my vow.

But ask yourself this: if you know your husband's ex-wife cheated on him and destroyed him emotionally, how do you justify doing the same? Because it will come out in the wash, end two marriages, and hit like a sucker punch to two men. If you or your gf have minor children, they will be hurt-badly. It might seem like a foolproof arrangement, but divorce court is full of husbands who weren't quite as chumpy as their wives thought they were. And by her actions, your gf is showing that she can and will cheat.

I can't sit and judge because I have been there. But when it does blow up, it has the potential to be financially and emotionally devastating to at least four people.