Do you have any good lost love quotes?

I'm writing a book and at the begining I want to put a quote about lost love. Do you have anything good and please none that you wrote yourself only from like books, movies, songs etc.

“Though lovers be lost love shall not.” - Dylan Thomas“He's also there for people who have lost loved ones.” - Don McClure“Parting is all we know of heaven, and all we need of hell.” - Emily Dickinson“To be with a man who hasn't tried every line, who hasn't broken up with a woman every which way you can break up with them, is kind of nice.” - Uma Thurman“It's afterwards you realize that the feeling of happiness you had with a man didn't necessarily prove that you loved him” - Marguerite Duras