Not so much crazy as inconsiderate but the consistent use of the word "my/mine" when referring to our things.
That "MY money" or "I" paid for that" drove me nuts. I definitely see it as a sign of something NOT good, whenever it happens.
Yeah, my wife is very much in yours and mine mode at the moment. Last time I checked we were sharing a house and kids :-)
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014