So, I split up from my ex about 7 months ago. I ended things at an awful time as his mum was terminally ill (i have another thread on this under different name). We were together 16 years and have 2 DC.
I have felt immense guilt about it ever since and he has been extremely nasty to me. He accused me of having an affair (I wasn't) and was just generally vile to me. i always kept my cool because part of me felt bad as I knew he had been through an awful time.
He even went through a phase of checking up on me on the weekends he had the kids, threatening to turn up early in the morning (probably hoping to catch me with someone). I was told things like 'how can you live with yourself, treating me like this' and all sorts of other stuff.
So I have just found out he has been seeing his ex girlfriend for MONTHS and possibly as soon as weeks after we split up. He has kept this very quiet and suspect his own family don't know about it.
I'm not even slightly jealous but feel immense anger that he has played the martyr and made me look like the bad one, all the while he found himself a new girlfriend.
I'd love to say something but feel I should keep it under my hat and use this as a trump card, the next time he says something vile.
Any advise on how I should deal with this?