I'm so wrong, I'm so wrong, I'm so wrong
If it’s a double entedre throughout the whole song, then this is simple. There’s two things here:
He feels wrong because he knows that she’s lying to him about her having ‘someone’, and that he’s making her cheat so much, especially because she won’t leave him alone and he clearly wants to move on.
The line shows that he is scared to be pushed aside. He feels “wrong” because he says he doesn’t want the fame, but at the same time, in the back of his mind, he wants to make sure he stays on top. He needs the fame. This can be tied into the idea that this song is about his relationship with drugs. Fame is his drug.
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