laddusaw-syndrome
When a guy starts dating a girl and then treats his friends like crap. He leaves his friends hanging for his girlfriend, lets her wear fake letters, and always takes her side even when she's being a total jerk.
I had to sit through a whole movie by myself because he was with his girlfriend.
He let her wear the letters of the fraternity even though she didn't go to one single party.
He told me to shut up when his girlfriend called me a f***ing idiot.