Perceived psychological contract violation

Perceived psychological contract violation is when you feel like someone has broken a promise or agreement they had with you, even though it was something that wasn't written down or said out loud. It's like when you have a good friend who you thought would always be there for you, but then they do something that hurts or disappoints you, like not calling you back when you need them. Even though you didn't have an explicit agreement in place, you still feel like they have broken their promise to you.