I hope my ex isn't your Dp cause I feel very sorry for you if he is! We only split up a few months ago though so he will have been a very busy boy if he is.
I left it to long before I left him to be honest. I kept thinking that I could try harder, smooth things over, get the kids to play upstairs out of the way for when he got home for work so he would be less stressed, and there was always some reason not to, a birthday coming up, Christmas, a planned event - but in reality I didn't think things were bad enough to justify me leaving, even though I wasn't happy. I would cling on to the good things, always made an excuse for his attitude (he was stressed at work, not used to older children, getting used to being a father to our child, the list is endless) I was scared of being single, scared that I would ruin things for my toddler, it became normal and because I never felt that I was enough, that I measured up I started to believe I was lazy, neglectful of his needs etc.
It took me to long to realise that my children weren't happy. I am so ashamed that I didn't realise it before. I started to hear his words and his tone of voice from my eldest, I watched how he treated his younger brother and I thought shit! He has turned into xxxx. Because they were an unconvienience to him and I tried to make that easier for him, they started to feel that they were an unconvienience to me too. They couldn't have toys/mess out downstairs, and even in their own bedroom they were moaned out. Ex was always telling me to tell them to tidy their room or do this that and the other.
I was sick of hearing him put people down, judging people, being so bloody negative all the time.
And I still didn't leave.
But it all built up inside me and I eventually exploded over something stupid and irrelevant. I totally over reacted and snapped. I think I was waiting for an excuse that I could validate to myself and that other people could understand. My own happiness didn't seem like a good enough reason to break up the family. I see now though that the family was a sham. It was a disjointed mess and my children are so much happier. They are currently sprawled on the floor in the living room watching Disney channel and playing with ds3s toys. It's not tidy, but it's relaxed, it's easy and I love watching them as brothers. The washing up is still in the sink, I am sitting drinking a cup of tea surrounded by bickering and laughing. It seems a life time ago that I would be watching the hands of the clock, making excuses to why I haven't scrubbed the house, telling the dc to watch a DVD upstairs and rushing round hiding the evidence of a fun day. I don't feel guilty anymore, I had a nap with the toddler today because I am poorly and pregnant and because I needed a sleep, instead of getting him off and struggling with the housework in the hour that he slept.
It wasn't easy to leave, when he had gone I kept convincing myself that he wasn't that bad, I missed his company and just having someone there. But every time he comes round and makes comments on my lack of housework I remember what it was like. And of course seeing my dc happy and relaxed in their own home makes it all worthwhile.