when it's never enough

What do you do when no matter how hard you try, it's not enough?

The husband asked for a divorce https://onlinedivorcer.com/county-specific-resources/ohio/divorce-in-hamilton-county

Why don't people give him a chance? Why do they let it get so bad, and when they realize their misfortune is so great, why don't they help their partners fix it? Maybe I'm just really action plan oriented. I just needed to know what I did wrong. How can I fix this. Tell me now. Not when there's nothing I can do about it now. Not when it seems so impossible that the only way out at that moment is divorce.