Lyric discussion by Marauder2IIC 

Some of you are really hitting the nail on the head, while quite a few others are out in left field.

Chris here is not being proud, or at all boastful. Rather, the song laments the fact that no matter how perfect, how flawless, how utterly charismatic this girl might be, she can't ultimately change his personality and his mood for the better. As another poster said, whenever Chris starts thinking: hey, this might just work out, in the end he comes to the sad realization he'll always be the same old flawed person he has ever been.

The rest of the album really reinforces this point as well...

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