It is usually a turn off to a man when a woman tries so hard to make a relationship work. To him she appears as if she is desperate and clingy. It is a man’s nature to be the hunter of the woman. When a woman does the hunting, to a real man it would feel as if she is taking charge and wearing the pants in this relationship. To spare his ego he chooses to stay away or opt for someone else who is hard to get, simply because he feels powerful when he does the hunting.