I'm going to post Spooks latest posts below, so you wise ladies can suggest things:
I just want to go out and keep driving until I heit a tree (don't worry that isn't what I am actually going to do).
I just hate this....all my RL friends are friends...but I have no "best friend"...they are all just "normal" friends and they all think I have someone else as a best friend IYSWIM.
Some are trying to stay out of it cos they are friends with OW,
I don't have a close bond with my family.
I am just sitting here all alonne in a mess and just want it all to be over.
I know.
I did ADs 18m ago when all this was inflamed before.
Because I was doing so well a week ago I thought I could do without this time. I will see how things are in a couple of weeks. I really can't afford to be on ADs if I can help it because it may affect medical fitness to teach that i have to pass to do teacher training.
But having said that I know that if I need them I need them.
XP has just been making arrangements for Sat night...he wants to take DCs out with OWs DCs. I just don't want to have anything to do with them any more. I know it is not any of the DCs faults. And I know what it is like to be told as a 9yo that you are not allowed to play with your best friend and not understand why. And I know what it is like and wouldn't inflict that on my DCs...but it doesn't mean I am happy about encouraging it....All I bloody have to listen to from DCs ATM is OW has chocolate bubble bath like this, OWsDD said this...it is all OW and her bloody family...I just can't see any way with it getting any easier whilst I live here in this house on her street in her village. But I don't see why I should bloody be forced out of my home.
I just can't help but think that the only option that will work practically (ignoring the tree option for the time being) is for me to move.
Problem is that because I am a student, and in 12-18m I will be moving to a location that suits the (hopefully) new job I will get I don't want to move twice. Add to that that I am on a hideously good mortgage deal which means that if I move now (which would have to be into rented accomodation beause I am a student) I would be comitting financial suicide.
So it just feels as though I either kill myself finacnially or kill myself emotionally over the next 18 months 
The other option is to talk more to OWDH I suppose....in the expectation/hope that it destroys DP and OWDH friendship and therefore all contact with the family is cut (even if he does pick up where he left off with OW once dust has settled).
Not sure that is the righ reason to talk to OWDH though (but then I still believe he has a right to know the full truth and not just OWs cover-up)....but then he might already know and has been more forgiving than me...but knowing him I really don't think this is the case.