I was just thinking about this (maybe too deeply!)
When we fall in love, we feel great, endorphin buz and all that, what I am wondering then is it selfish to love someone because we are loving someone to feel good inside. I once read that to truly love someone you would let them go if you knew they would be happier away from you but most people I know, want to hang on to the person they love and that 'feeling' ...so is love actually a selfish emotion? I am talking about love between 2 people in a romantic way not maternal or any other type of love, that isnt selfish (normally) as mums would sacrifice themself for their child in most cases.
Love is a chemical reaction, a type of bond to keep us with our mate, but who does it benefit and surely nature should have got it right that mates should be equally committed and attracted to each other, I just cant imagine a penguin saying "no your not my type to a potential mate"
Its OK, I know I sound daft, its nearly the weekend though x