behaving as though you're a
martyr, the victim of an injustice, and doing it in a self-righteous way, as though you're the only one who has suffered
(the phrase is a sarcastic reference
to Jesus being on the cross, the idea being "You think you're an innocent victim, like Jesus on the cross?
Who do you think you are?")
situation: Person A has been trying to set up a conversation with Person B, to have a conversation about an important issue that affects a family member (Person C), but Person B has been attacking Person A for his faults, instead of focusing on understanding the family
member's challenge - Person B is putting himself "on the cross" instead of helping to solve the problem
"
Who do you think you are? Is this about my faults, or are we talking about helping Person C? You give me a call when you
get off the cross, and we'll talk more then. Meanwhile, I'll get to work on my own."