"Last Christmas," he sings, "I gave you my heart, but the very next day you gave it away. This year, to save me from tears, I'll give it to someone special."
First of all, he needs to understand that a heart is a very precious thing to give, and he needs to learn not to give it lightly. He seems to be beginning to grasp that, but it just doesn't sink in completely. How do I know? Because the next year, I hear him singing it again. This tells me that every Christmas, he gives his heart to someone special, and the very next day, that someone special gives it away. Instead of saving himself from tears, he ends up collapsing in tears every stinking December 26 because the "someone special" turned out to be not so special after all. He must have a serious case of insecurity, and no wonder, as he is consistently dumped every Boxing Day!
I guess the moral of the story is that you need to be much more careful in giving your heart than this singer. There are better things to give as Christmas presents than your heart. Especially if you give the same thing every year.