sweetheart
n
1 (dated 旧) one of a pair of lovers 恋人; 情人
They were childhood sweethearts. 他们原是青梅竹马的恋人.
Mary has a sweetheart. 玛丽有个心上人.
2 (used esp as a loving form of address, eg to a wife, husband, child, etc 尤用作爱称, 如称呼妻子、 丈 夫、 孩子等).
What about heart? Heart is what makes you love other people. You can love your friend, even though you don't agree with everything she or he says. So when you listen to someone, you should listen with complete attention, and with complete respect for