I am a long time lurker on this board as I know things haven't been right in my marriage for some time but I couldn't put my finger on exactly what was going on. Can't be bothered to namechange!
DH and I have been together for 14 years and married for 6.5 and we have one DD aged 3. This goes back at least since DD was born and probably even before if the truth be told. In recent months, I have thought about splitting more than once as I find some of the things he does really hard to live with (if I had discovered mumsnet years ago, i think I would have seen the red flags and we might never have got married). I now realise he is verbally abusive (often tells me to f*ck off in the middle of a row - sometimes in front of DD - and he cuts me off and won't let me speak, stonewalls me and talks to me like he is 'in charge') and I am pretty sure there is some EA in the mix too even though, although he makes me doubt myself as he comes across as the perfect DH to everyone else (and probably thinks he is too) - but I have carried on for DD and because I didn't want to be the one to break up her home...
Anyway, we had yet another argument this weekend while we were staying with friends just before he left to come home (he was due to be coming home Sunday eve by train and I was staying on with DD until today) and he ended up setting off for home in a strop. He didn't text me to say he got back OK until the morning (even though I'd asked him to) so I didn't bother to call him at all yesterday (sometimes it's better to leave him be until he calms down anyway). The text I had got was very curt, so i thought sod it and didn't call him all day. I did send him a photo of DD having fun with her friend (my friends DD) while we were out in the day and he didn't respond. I then got a second curt text last night saying that he thought I would have at least rung him so he could chat to DD. DD didn't want to talk to him which is not unusual as she doesn't like talking on the phone so I text him back to tell him that and that she was asleep and then I left it, thinking we could just discuss when I got home tonight.
Apparently it was all the wrong thing to do and as usual I am the only one in the wrong. I think i was partly out of order, but then so was he. It's almost like he was 'testing me' to see if I would call or not if that makes sense?! He now says that our relationship is obviously so unimportant to me that I couldn't be bothered to call him (even though he didn't try to call me), and that there are lots of issues and he thinks the trust has gone (he thinks I was discussing it with friends after he left). He says the relationship is over and I think deep down we both know he is probably right. I think we have got to the end of a road here and I am not sure we can save the marriage, as the cracks are too deep to fill.
What I can't get my head around though is that I just don't want this to happen in reality, I just want it to be OK, I don't want to have to share DD and have to spend every other w/e apart from her...I start thinking about all the things that we won't be able to do as a family any more and it makes me so sad. I just don't see a way out of it though now it's all been said 
He's gone to bed now and won't discuss it any more tonight. I on the other hand won't be able to sleep and am left here upset and not knowing what to do...my head is spinning!
Sorry that was longer than intended. Thanks for reading if you got to the end! I just needed to write it down.