Jesus, Tony. Rough doesn't quite describe things, it seems.
Better to know than to rack your mind, body and soul guessing. It's little consolation, but at least you now know the TRUE guilty party in all of this isn't you.
I'd love to make some really trite and snide remarks on the cheating partner, as I watched my best friend nearly become clinically depressed and halfway looney due to a similar episode with his now ex-wife. Crap like this really tends to boil my blood, but I'll keep my trap shut...
"It is said an eastern monarch once charged his wise men to invent a sentence, to be ever in view, and which should be true and appropriate in all times and situations. They presented him with the words, 'And this, too, shall pass away.' How much it expresses! How chastening in the hour of pride! How consoling in the depths of affliction!
-Abraham Lincoln
God Bless and best wishes.