just for valentine's day (because knowledge doesn't rest even if it's a day dedicated to feelings over thinking) I will post a snippet i found at cnn:
"...The part of the brain that lit up the strongest was that associated with rewards and pleasure, a finding not nearly as poetic as romantics would have thought. It turns out that, to the brain, love is just another reward, much like chocolate or money, or like a drug to an addict. This brain system gets used every time you want something."
Yeah it's just like i've been saying all along, although i'm not going to claim love isn't important but I will claim that the abuse of the feeling can be dangerous.
LINK:
http://www.cnn.com/2006/HEALTH/conditions/02/14/science.of.love/index.html