What book is this quote from?

"I was, but then I realized that I was holding on to something that didn't exist anymore. That the person I missed didn't exist anymore. People change. The things we like and dislike change. And we can wish they couldn't all day long but that never works."
I read it on tumblr. It was a picture of a book, and it had this quote in it. I really want to read it.

Anijatsu2011-08-16T06:08:35Z

Favorite Answer

Fixing Delilah by Sarah Ockler