What is Batman Complex?
1.
This occurs when you do good/nice things for people and nobody cares or acknowledges what you've done for them much like the relationship between Batman and the City of Gotham.
Tom: So I watched over Joe's house while he was on Va-Ca and when he came back he didn't say thanks then he was pissed because i misplaced his frying pan. what a dick!
Pete: Yeah you've got a real Batman Complex on your hands.
See