If I love you, and you don't know it, then please ignore the way I look at you from time to time; if I love you, and you feel it vaguely, then please don't be embarrassed; if I love you, and you know it, then please don't alienate me who wants to be close to you; and if I love you, and luckily, you are in love with me, then please don't be afraid or worried, because I love you too.