If you are a guy whose GF has left him for a richer guy, then you shoulD go and hang yourself...it means she considers him more man than you...she sees you as a loser......
Women have always gravitated towards men who are wealthy and rich......even traditonal English literature had stories in village settings where the most elgible bachelor in town was a lawyer or a surgeon.....that is the way it is, learn to deal with it!!