Hi Ike
I'm sat here reading your messages, and I am in a very similar situation. I found out that my H had been lying to me for most of this year (I still can't prove when his relationship started, as he refuses to give me any information) but I found out in October that he wasn't where he should have been(In a hotel with OW in Notts when he should have been in London), and confronted him only to be told that she was a work colleague and a "Good laugh" That nothing had happened and that I was always over-reacting as they were only friends.... nice.
I went to pieces to start off with, but also felt that it explained his odd and horrible/cold behaviour towards me for most of this year. I had been blaming myself and thinking it was all my fault.
I totally agree with the other posters how hard it is to try and live in the same house. We are currently still together, as he is refusing to move out at the moment, and wants us to try and have a "nice Christmas" together ...... yeah right - but is sleeping in the spare room (Which he has done for the last 3 years, as he likes to have a fan on him at all times and he snores) and we are basically ignoring each other - I'm sure my DS is picking up on it all, as he wrote on his bedroom wall the other day, which is so out of character for him (He;s 6 1/2) and has never ever done anything like this before.
I am soo unhappy and am dreading Christmas together. We have decided to go out with friends so that the atmosphere and pressure isn't too much for us (Well I decided and he wants to join !!!) maybe you could do something like that ???
I am so sorry that you are going through this at this time of year, I feel really dreadful, I can't get myself motivated to do any shopping/write cards etc, as it all seems to be such a farce !
Maybe try and keep it together for the sake of the DC's over Christmas and have a clean break in the New Year. As other posters have said, I think men (My H is 43) start to think that marriage/kids etc is all boring and stale and that the grass is certainly greener on the other side - I'm sure it isn't and if he is the doting Dad, then he will find life almost unbearable without them - maybe this will bring him to his senses. But then again maybe by that point you will be stronger..!
I am hoping my H will move out in the New Year and we can start a 6 month trial separation, and I am planning on lots of girlie nights with friends, and happy quiet nights in with the TV a G&T and my little boy to keep me Company. we will all be OK and maybe will look back on these parts of our lives in 2 years time, and think it was a different person - well that's what I'm hoping for anyhow.