Sum It All Up! Good Guys/Bad Boys - Good Girls/Bad Girls

Summing it all up!  What determines if he is a Good Guy or Bad Boy?   What determines if she is a Good Girl or Bad Girl.  Is it really all part of Human Nature to be more attracted to the Bad Boy or Girl or is there more to it?  Such as: how one was loved or not loved as a child; one's spiritual relationship...  Ladies, do we want the bad boy first and then call for the good  guy to clean the mess up later in life?  Are nice guys less attractive and exciting?  Are they to soft or too emotional?  Does age play a part in this?  Where do you fit in?  Are we all drawn to toxic relationships?  

What’s holding you back?