While murder is never the right thing to do, one could sympathise how she was driven over time to come to that state of mind.
Her experience was not unique. Many women were effectively screwed over. Happened to my childhood best friend’s mother. They met young. She worked and out him through school. Just like Betty. Raised the children mostly on her own as he was far too important and busy to help. Wasn’t the done thing back in the day.
House was always perfect. Amazing meals. Everything was about supporting him
Bastard was screwing his secretary. He’d also been bullying and gaslighting his wife for years. Even as young children, we knew something wasn’t right with her dad. He had such control over his wife.
Eventually the bit on the side said it was long enough her waiting around so my friends parents got divorced
That beautiful house she so painstakingly maintained, beautiful garden she created - gone. Kicked Out. Totally screwed over. As just a bystander as a teen, I remember feeling so very bad for her. Outraged really. He promised my friend all sorts of things, bribed her to stay and live with him and his new wife.
Thankfully, over time, friend’s mother met a lovely widower who worshipped her and they had some lovely years together.
Very much think they’re should be a defence of a crime of passion or somehow driven temporarily insane because that is what I think happened to Betty.