doughmance
Dating someone just for the expensive gifts and lavish dates.
Sue doesn't really like Tyler, it's just that he takes her to the opera, gives her jewelry for every holiday, no matter how minor, and has a vacation home in Venice. It's a total doughmance.
Doughmance
The parasitic relationship between a gold-digger and sugar-parent.
The stripper and the oil tycoon were deep in the troughs of doughmance.