Here goes my experience with a libra I dated, a friend who dated a libra, and a friend who is a libra. 

Libra was the worst that I've dated. They will make you believe that they are someone that they are not. They are very good sales people because they will be selling you a dream.  They will be everything that you wished for in a partner. In the midst of them being very dreamy they will only stay around until they find someone else that catches their eye and they will ALWAYS find someone that will catch their eye because the are very attractive and ALWAYS flirting with someone.