Hi ....hope you don't take this the wrong way, but do you think he might have found out about your 'date' ? Apparently he doens't actually have an OW.....
Try and let go of the conversations and TM you had, let it go, do not contact him again. And next time do not respond to those messages, I do too, but I've been told to wait 48 hours !!! this gives us time to think and decide what to do or say next if anything !!
Try and detach from all the drama, it's killing you ! Take care !! xxx
Love Cinders xxx
"In the depths of my winter, I realized there is within me an invincible summer" Albert Camus