Hi—sorry you’re wrestling with your thoughts this way.
I read that sentence, and I thought it was really a horrible, mean and devaluing thing for one human being to say to another—especially in a relationship that is truly supposed to be close and loving. That devaluing thing that narcissists do: it’s endless, it’s destructive, it keeps you off-balance during the relationship, and stays around long after you’ve escaped them, filling you always full of self-doubt.