My mom has a type of cancer now, and I keep thinking of how different things could’ve been if my parents were still together. I’ve always felt like a bad person and I’m constantly trying to redeem myself. hell I can’t even say no to people even if I disagree or don’t want something and am constantly apologising.
You were six. You absolutely were NOT the real cause of their divorce.
That said, you still need to open up to both of them while you still have that option. It’s not as important o reach a resolution or for them to respect your position as it is to simply make them aware of how you feel and to vocalize it for the sake of your own mental health.
Hopefully you can all at least make peace with each other and move on.