What is Love?

I've always asked this question. What is love? What the heck is it? How do you get such a feeling? Such an emotion? I know I've never felt it before - and it's something I've never understood. I can't write a whole post on it since I don't know anything about it. As for why I've started questioning it - let's just say I've been reading too much manga and watching too much anime.

Anyone with a clue that could enlighten me?