Yup. I don't want blackmail on them, and I don't want them to have blackmail on me, because if the relationship goes south, one of us (or both!) will resort to the nuclear option.
Protect yourself and build a relationship based on respect. Trust is earned, not ransomed.
Idk, I have shit (emails and texts) that could be considered blackmail on my ex wife of 15 years (not legal but would trash her relationship with her family which for all our faults she values and depends on as much as anything in life) and I would never open that can of worms. I also have video sent to me that would cost my current girlfriend (she shared them) massive headaches and likely thousands in lawyer fees and support. I can’t imagine a scenario where I would leverage it for anything. I value that my ex and current GF know they can trust me, entirely, without consequence. Relationships are hard and things don’t always become or remain what one would like but I can’t imagine purposefully hurting someone like that. My ex wife and I can’t stand each other but theirs comfort in knowing we can trust each other. I wouldn’t go to her funeral but I’d help her bury a body and I know she feels the same.