Your poem depicts well the hell he put Ingrid's character through. In every day life, much more subtle forms of gaslighting happen all the time, some via manipulation of extreme narcissists and some by people who actually love us and don't know how else to react, like several years ago my mother exclaiming to me, "you need a psychiatrist not a psychic." I searched for and found this essay I had read a few years ago on gaslighting that I found informative. https://medium.com/illumination/gaslighting-is-a-social-disease-eed47b42eb92