She is not you
When she looks at me
I picture it is  your face that I am seeing.
When our  lips touch
I pretend it is your lips that I am kissing.
When she touches me
I feel that it is your hand brushing the surface of my skin
And when we are intimate
I pretend that it is you I’m making love to.
And she is  perfect you know?
She treats me better than you ever did
she was the idealistic  you that I had portrayed

So if she is the exact replica of how I pictured you to be,
why can I not  I fall for her?