I'm over five months post split, at my instigation, following verbal abuse, sneering at the children, taking us for granted, blah blah (by him, I should add!), and I can happily report that my 7 and 3 yo children are absolutely fine.
This was the thing that was holding me back, I was very worried how it would impact on them, their dad moving out etc. But I just couldn't ignore the awful atmosphere at home and the fact that that was having a bad effect on them too.
Now, our home is peaceful, and we have lots of laughs and silliness. There are the usual stresses too, and I'm bloody busy, and yes, not the greatest in that I shout too from time to time. ("get your coat on for the 15th time" type shouting I might add).
Their dad didn't react well at first, and in fact went totally off radar for nine days (turning off his phone/not calling/ not seeing the children) to get at me and to try to get me to chase him. Well, I didn't. I thought if he was going to be that kind of father, better they deal with it sooner than later.
I'm glad I did it that way as he realised he couldn't take the piss. Now, I have to say, fair play to him that he sees them regularly each week, twice a week or more. He's still an arse to me, and a big baby victim, but I don't care as long as he deals fairly with the children.
So don't let your "adult" (and entirely reasonable) fears stop you. Children, well my children, seem to see things as they really are, while we run about worrying too much. If they have you, and a happy home, they will be ok.
Oh and I have NO REGRETS!!