There are two kinds of lovers. There are those very deeply love somebody, feeling such emotions and relying so much on having that person around. And there are those who care so deeply about somebody that they do whatever they can to make that person enjoy life. Oh, yes, there is a third kind of lover - the people who do both.
"Love is that condition in which the happiness of another person is essential to your own," says Robert Heinlein.
What kind of lover are you?