How will this effect my kids

hi.
I wrote a post yesterday explain how argumentative my 10 yr relationship is and asking what I do about it. the advice given was leave my partner so the kids don't get effected. which i happen to agree wiv.
I wanted to know if anyone knows what will happen if my 3 kids all under 6 constantly hear their farther screaming at me with vile words. not yr normal arguments much much more nasty. there's never violence but the words feel like a punch. it's constant and he can't stop. we've talked and he says he knows what he does and doesn't mean it but gets so angry the 2nd he sees me, from work or even just waking up at 2 in the afternoon.ive been up since 6 mind. everything he calls me he seems to b himself. lazy, tired. go and die and if I'm honest worse. my 5 yr old actually said to me mum stop busting my balls.
my question is probably a stupid one but if I stay what Wil my kids b like. or seriously will I mess them up. they must come 1st. We used 2 b so in love. it wasn't like this. 10 yrs is a long time but I'm starting to feel real low. I used 2 b so strong. where have I gone and what will happen 2 my little angels. pls advise. sorry to go on.