Sorry I haven't been able to post but thanks everyone for your support.
No I am SAHM and I do think you are right something2say I do think that is part of his attraction for her I have heard him pass comment on her before and how well she has done. I don't think she is particularly happily married from what my friend has said about her in the past. As I say she is very likable and very women friendly she is not all over the men she doesn't even seem to notice them. If she see's DH out she is perfectly nice but i have never seen her bother with any men she is more likely to chat with the women. She is confident though and always looks glamorous - she doesn't have the "mum" look. But i don't think I do either really.
We have 3 DC, 15, 10, and 4 and if I am honest I have always but he DC first but I wanted us to be a strong family. He works away abroad a lot. There always seems to be a child in the bed and he has slept in the spare room a lot due to his irregular flight times and all of that. We had a few bad years and did talk about separating and getting divorced. He never helps around the house and is away a lot and seems to think because I am a SAHM I should be doing it all.
We had a lot of marriage counseling and things were on track i thought.
There is no mention in any emails to imply they have gone away together they actually don't even appear to have seen each other much and whilst there are lots of requests from him to do so and she always seems to want to it does look like for some reason they don't.
There are some I have found to his friends asking them to invite her to things which has made me cross and sick. His friends have just laughed it off - that was a while ago though.
It does look by his emails that a few years ago he was completely infatuated he is unbelievably gushing to her. He does talk to her about wanting to be on his own and just staying with me for the children (men so predictable)
The last couple of years though the emails are more sporadic although they do still talk to each other in very emotional terms. The also sometimes just ask how the other is or maybe send a random jokey thing. Not regularly though sometime every other week and sometimes months in between.
Really I just don't understand - if you want an affair have an affair but why this?
I feel like he is torturing me it is worse than him just having sex with a colleague or something because it looks as if there is feelings there? But if there were why wouldn't they see each other it doesn't make any sense?
After his last email there is no response do you think he has got her out of his system now maybe?