It is not a necessity to love a person whom you are fond of. But the precondition of loving a person is that you surely like him. When you have mind on a person, it can be easily transformed into loving, nevertheless, one can hardly say he like once love has been expressed. The reason for this is that liking means tolerance while love means selfish. Be care of someone makes a comfortable feeling without lot of burden. But love means too much. After saying you love him, it turned to be a vow of you; love is double-edged sword, it will hurt both of you if it is imprudently pulled out. One who was ever hurt has a pain which will never fade deep in heart. At night, the moon is bright with few stars, you are missing your faraway friend, at which moment if it is a tenderly fond and a warm feeling in your heart, it is you like; if you can feel a obscure pain, that is love.