I dreamed that the girl had her hair cut short.

Hair represents fetters, and short hair represents skills. You just solved a happy thing. You dream that your hair is getting shorter: (1) Hair represents personal image, which may imply that the dreamer is worried about his image or wants to change his image. (2) Hair represents strength, authority and love. Dreaming that long hair is getting shorter may indicate that the dreamer has lost strength or authority, or feels tired/weak, or that there is something wrong with love. (3) Long hair means to think twice before you act, and be cautious. Short hair may indicate that the dreamer has acted rashly or hastily recently. (4) This dream may suggest that the dreamer is reorganizing his thoughts and getting rid of bad or unnecessary or annoying thoughts/habits. Good luck!