This is one on fairly heavy rotation in my piano bar, so I believe I can speak to this with some authority. The explanations given are as follows:
1. He's leaving you tomorrow 2. He's begged, stolen and borrowed. 3. He's done all he can (it seems to him) 4. He's paid his dues to make it. 5. Everybody wants him to be what they want him to be, but 6. He's not happy when he tries to fake it.
So, no, I guess the explanation is not at all satisfactory!