Why bad boys have thousand girlfriends but well mannered nerds have to run after them?

bad boys usually have a life. many nerds dont. girls always want to have a life with the bad boy. i dont know what kind of nerd you are talking about, but if you are a school nerd, then definetely many people hate you. But still you can get good grades and not be a nerd. BTW i am a nerd in math, but then, i am still popular. Besides, nerds only do one thing 24/7. literally. THe girls dont want the guys to do that and not have time with the girl.