I agree, my parents split when i was 7 and i was soooooooooooooooooooooo glad.
Some people are not meant to be together they bring out the worst qualities in each other so they are constantly showing their worst side to their children - what kind of role models are they, why make you and your children unhappy.
Happy mum = happy kids
I'll try to keep this brief - mum and dad both unhappy, he snapped at her constantly she couldn't eat an apple without annoying him because he said the noise irritated him she was always packing her bags and crying, jumping out of the car when moving to get away from him in arguements eventually she couldn't take it anymore and left in the night when we were in bed.
Since she left they have both moved on to happier, more constructive relationships I haven't seen the bad sides of either of them since the divorce. My mum found some confidence and has retrained and is now at the top of her profession and is in a very happy loving relationship with a nice house etc (my dad would never have given her that he had no ambition to have a nice house or go on nice holidays - luckily for him his new wife kicks him up the arse and has made him have a decent life, something my mum wasn't able to do - and why should she)
My dad is happier now too i believe they love each other, both quite independent and do their own thing whereas my mum and sdad spend every minute they can get together - you can see why it didnt work with my mum and dad.
My dad didnt hit her or cheat on her either. He did mentally bring her down though, she had no self esteem he was always saying she was stupid etc etc
One of the most important lessons my mum has taught me is if you're not happy with your life do something about it and if you want something go and get it.
Their break up was the making of our family, i gained 5 brothers (already had my sister) and they've all done well with their lives so our parents must have done somehting right
Good luck with whatever you decide.
The first few years will be hard but they say what doesnt kill you makes you stronger, certainly true ime.