What zodiac sign is she?

friend asked me to post this question for him: i know this girl. i kinda like her. to other people she's complicated. funny, serious, idealistic in love, tries to avoid conflict, disappears when the argument starts, prefers to work at the background and sometimes in limelight from time to time, like things in order, hard working, opinionated, charming, sweet, doesn't like the crowd, dresses well, thoughtful, stubborn, ytical, smart, intelligent, can decide on major decisions but has a hard time deciding which dress to wear. what's her possible zodiac sign?