So loveless, still, and very young (5)
I believe the answer is:
seven
But I can't explain it at all! Could you help me understand?
(Other definitions for seven that I've seen before include "Theme of exotic dance" , "Number of sins, seas or dwarves" , "number of swans aswimming" , "Dwarfs or Wonders of the World?" , "Wonders of the World - Deadly Sins" .)