Friday is D-Day for my marriage - Apparently!

[EmmaKateLouise]

My husband as not been happy for a few months now but he can't (won't?) say why. He says he doesn't know how he feels etc etc
Anyway, I've told him he has to think about it and we are going to have "talk" on friday about it!!
We have discussed it a few times before and he always says that if we were to split he would go so the children stayed settled in their house. Fair enough, but problem is... we part own and share our house with HIS parents!! So I'd be left with HIS family!! Yes, I get along with them but that is just ridiculous!
So I know on friday he's going to suggest he leaves for a temp split and see how it goes. I want the children to be happy but I DO NOT want to live with HIS parents without him there!!
Oh god! It's such a mess. I never ever thought it would end up like this.
The worst thing is he has yet to tell me where it's all gone wrong!! I think we struggle sometimes, fight a little but nothing huge. I believe we could weather this storm and come out stronger on the other side. He has changed and now isn't happy. Why can't things just go back to how they were?!?!
Sorry, just need to write it down and maybe realise I'm not alone.

And why should they be forced to leave their home just because their offspring is an arse?

It does sound like an ongoing affair to me. It would make me sick to think of him shacking up with another woman while you look after his aging parents and deal with all the family stuff.

I would move out, even temporarily, with the kids. He will cack his pants when he realises he can't move her in.

I agree with BOF. I would move out and definitely take my children.

Hello. Thank you everyone for your advice, as hard to take as it is at times!!
We had a huge row on saturday night, after I looked at his phone and he had rung her on friday night. He said it was because she text him, asking him if everything was ok between us (me and husband) and if I still wasn't going to tell her partner. He rang because he is crap at texting (which is true). I kept asking him, time and time again why he rang. Why couldn't he just leave the little btch alone, ignore her.
He had no answer.
Anyway we yelled more and he blamed me for blowing a little phone call out of all proportion, oh forgot to say that he says he can't trust me now because I hacked his Facebook/snooped on his phone etc! So i thought well fck him then!
Now, after more yelling we did eventually talk. I told him i was leaving. He asked me not to, etc, etc, but I am going tomorrow. He is away on business (don't worry no danger of OW being there was my FIL is there with him and it's miles away) but I do have to go home tonight and face his mother, whom he told yesterday and hasn't spoken to me since! Anyway, that bit of the story gets a bit irrelevant and drawn out.
So now we are on speaking terms. I still love him and am still being naive, as everyone on here says, as I do beleive it was just a kiss. I did make him swear on his little girl's life (whoops, does that make me a bad mummy too) that that was all at ever happened.
The strange thing is we got on brilliantly yesterday, with all the pressure removed from having to fight to be in a relationship anymore and knowing I was leaving, everything seemed to go back to how it used to be.
I kind of hope it's just a temp split. I'm looking at it just as a little holiday, where I can be alone (well with the children) and think and decide what I really want and how I really feel.