"
How fickle my heart and how woozy my eyes
I struggle to find any truth in your lies
And now my heart stumbles on things I don't know
Fickle means when ones heart changes frequently when it comes to someones loyalty, interest, and/or affection. His heart changed too much. When your eyes are woozy, you can't see properly; everything is blurry. He couldn't see past the lies he was given. But now that he realizes how misguided he was, he can't find any truth out of what he is told. Now, he has trouble deciding what is true and what is false because of his past experiences. He no longer is fascinated in the unknown because he is scared of being told lies again.