I read this book, so I must have liked it on some level but now just have well intentioned criticism. The first that comes to mind is for the author to go through her manuscript and delete every "she licked her lips" in the story. The oft repeated phrase reminded me of a drinking game, one in which someone would never be able to finish the book as it is mentioned at least 187 times.
Get rid of referring to people by their hair color! Pronouns work and are easily ignored while still retaining the flow of the story. I am just glad Charlie didn't have black hair with blue highlights. Dialogue and banter of the male friends could have been greatly improved as they came across as very superficial and silly.
Overall I liked the story and the idea of being able to find lost love, aided by maturity, and making it work.