Maybe she didn't know how to be loved so fully.  
Is that what that was?
He wanted to tell her and teach her of how phenomenal she was in his eyes.
But when she looked through her own.  All she could see was the words of another. 
The words engraved in her mind, soul and self.
How could one possibly love [me] this much.  When those who were genetically programmed for that purpose, were,
are, incapable.

She had so much love to give.  but would not let anyone close. loving from a distance is all she knew.