Maybe it's something you understand as you grow older but in youth, as it probably should be, physical attraction is the most important characteristic.  Follow that up with feelings of excitement, thrills and reckless abandon and that all leads to the species procreating. 

But what happens once the veil of animal attraction begins to fade?  What are you left with?   Is it anything you can build on?

There are 7 area's Dr. Helen Fisher has been able to identify that lead to lasting relationships.  See if your relationship will hold up....