Thank you very much everyone for your kind words of comfort. I'm feeling slightly better now at the end of the day. First time I opened up to my mum ( we always had an awkward relationship) and cried a lot. I was surprised that she listened to me and didn't put me down. It was good to cry.
I feel I'm hurt because I still love H and still want him back. Unfortunately I have to realise (like my mum said) that he isn't prepared to take any responsibilities and act like a real man. She thinks he is just a selfish kid (he is 37!), and I'm having a lot of responsibilities on my shoulders, that he is just expecting people to deal with his mess!
She told me that it will take time to recover from this as I can't draw a line on 11 years. She thinks that his relationship with OW won't last. Only time will tell!
I have got to say that I'm proud of myself as I didn't make a fuss or shout at the two of them. I think this shows what a great person I'm growing into and despite the hurt and the pain, I didn't show any anger! I'm pating myself on the back :-)!
I really don't know how to behave with him tomorrow. He has a set of keys, so he can let himself in whenever he WANs and I stay clear of him. Or shall I do it like I have been doing recently: opening the door for him, says hi and carry on what I was doing?