What "love" means to me?

     It is very difficult for me to define what love means to me. When I think about love, I come up with a feeling of love for my lover in the first place. Love for my lover sometimes makes me happy or comfortable, but sometimes makes me depressed or upset. In the second place, I come up with a feeling of love for my family or friends. Love for my family or friends is different from love for my lover in terms of the extremes of my mind. Put simply, my mind is wavering in love for my lover, but it rarely happens in love for my family or friends. I think love for my lover is passionate, and love for my family or friends is static.