Is your score positive? You win! (Some players win more than others.)
A woman needs a man like a fish needs a saxophone.
Is there any official clarification of this?
tl;dr: If you can draw any cards, treat it like a normal turn, although you may not get to do one of the actions. This is okay. If the deck is completely empty, you get $2 instead of drawing any cards.
(edited to correct first link; thanks, mik!)