Depends on the pet name.
If she calls you something like "Snookums" it might indicate a case of terminal cuteness.
While "F***ing Rat Bastard" probably indicates that its time to get the hell out of Dodge.
And if she comes out of the bedroom in leather and stilletto boots, holding whip in one hand and oreder you to put on a dog-collar and leash while calling you "Rover," I'll let you choose for yourself.
