I won't bore you with the full details of the breakdown of my marriage (they're on other posts of mine if you really want to look them up) suffice to say STBXW's interpretation was that - despite me being a great guy and husband - we had drifted apart and the EA she was involved with had nothing to do with this drift. It was just the catalyst that awakened her to the fact we had drifted since she wouldn't be so infatuated with a guy (who she barely knew) if we hadn't.
So we separated on her instigation. She told me that it would affect her so much she wouldn't get involved with anyone else for at least two years. I told her, whilst I was flattered, this was somewhat unrealistic given recent events but she was adamant.
Fast forward to today. I've been checking the joint account. There was a payment made by her to a specialist online pharmacy on the one month anniversary of our separation, during the time I had the DCs. The only item I can find in the store that matches the cost is a Morning After Pill.
Nice.
Still, its not as if I didn't suspect. Can't really vent to her so felt compelled to do it here. Sorry all.