I never asked my mum to leave, either. She stayed with my dad, and then, as I grew into and through adulthood, I chose relationships that replicated theirs, because I thought that that was what adult relationships look like. So, I had partners who were rude to me, partners who shouted at me, partners who told me I was wrong, partners, who made me feel bad about myself... and the one thing that kept me in those relationships was this thought:
Maybe I’m in the wrong
Have some self respect, JulieLikesTulips. You like what you like, and you don't like what you don't like. You can't argue with that. You like romcoms but you don't like action films... do you really consider whether you're right or wrong, or do you respect that that's your preference? You like to be treated nicely, and not to made to feel like you're somehow an 'issue'... do you really consider whether you're right or wrong, or do you respect that that's your preference?
Your children have asked you to stop arguing. There are two ways to do that: suck up things that you want to argue against, or refuse to be around to hear them. Show your children that if someone makes you 'arguey', the thing to do is walk away. I'm sure you'd do that anyway, wouldn't you, if one of them was being bullied, for example? 'Don't fight back, they're not worth it... just walk away.' This applies to you too.