Dear Loserville
First, PLEASE change your name, the only fucking loser here is the waste of skin that is your stbex. I'd quite like to see something like:
FabulousWomanFormerlyKnownAsLoservilleButThatWouldActuallyBeTheEx
Second, you have no fucking idea how angry I am on your behalf. I found my ex in bed with somebody else out of the blue and from nowhere, or so it seemed, so I have a small inkling of what you are feeling. Now with the clarity of nearly 20 years between then and now there were signs for me. Your ex is, for example, a twunt.
Third, go get yourself a solicitor this week and start redirecting his post.
Forth, if you are having trouble sleeping try counting 1 on the breath in and 2 on the breath out. It worked wonders for me when trying to get to sleep and those moments when you inhale like you've just been kicked in the chest thinking about it all.
Fifth, you are fabulous he's a knob.
Sixth, he will go into classic trying to blame you for everything mode. You did not make him go and stick his cock in some woman. Yes, there are probably issues in the relationship but this sounds like mid-life crisis to me, also, if he's done it once his odds are significantly increased of doing it again, I wouldn't take him back. Mr Tigga says he's a cunt and it takes a lot for Mr Tigga to use that kind of language, he has the tendancy to change the channel when women get called bitch, I have no idea how I've got him to watch Game of Thrones!
Seventh, I suggest, if you can afford it, to go with the girls for some pampering, or if you can't afford to go out do some home pampering together. It won't mend your torn heart, but it will give you all some bonding time and will allow you all to talk about things in a calm environment.
InDaSpeakOfDaYoofYouGoGirlTiggaxx