That sounds horrible, and completely believeable. Blind date, she orders expensive drinks and/or food because it's a "date" and regardless of more modern conventions, some believe that if it's a "date" then the guy pays, period. He, however, wasn't planning on that and isn't going to drop a wad of cash on some girl who's clearly just there to take advantage of him, plus it's a red flag that things aren't going to work anyway, so on the pretense of going to the restroom, he bails, because fuck that shit.