Pistanthrophobia: fear of getting hurt by someone in a romantic relationship, or of one ending poorly. This leads to the fear of trusting others
Marco took medication to help his Pistanthrophobia
After we finished arguing with each other, he told me all the lies that he's been saying. From that point on, I have a pistanthrophobia.
Person 1: "Come on just tell me!"
Person 2: " I can't trust you..."
Person 1: "How come?"
Person 2: "I have Pistanthrophobia."