“If you were my friend, you’d….”
“How would you like it if I told your parents/spouse/children/friends/boss that….”
“What about the time I did _____ for you?”
Anyone who says things like this to you is emotionally blackmailing you. So is gaslighting. And it isn’t always done with malicious intent. Sometimes the person feels justified doing it. Even so, it’s abusive, and you shouldn’t put up with it. You need to confront it through communication.
If you think you or a loved one is being emotionally blackmailed, read this short but informative article, How to Spot the Toxic Behavior.