His Reverie by Monica Murphy

I knew from the moment I first saw her she was the one. The only girl I could ever want.
The only girl I could ever love.
She is light.
I am darkness.
She is innocent.
I've done too much.
She is good.
I am bad.
She is my every dream.
I should be her every nightmare.
We come from different worlds.
She's...perfect.
And I'm... Not.

Somehow she wants me anyway. So we'll grasp at what we can. We're going to make this summer count. She's my secret. And I'm hers. The problem with secrets is they never last for long. And when others discover we're together, they'll do whatever it takes to keep us apart. All I know is: I won't let them. Because Reverie Hale?

She's mine.