Does anyone know some books about a sad lovestory?

Try Nicholas Sparks' books. They're great!

A Walk to Remember by Nicholas Sparks

Its a great book.

I recommend you the ageless "Love Story" by Erich Segal. You'll love it, like millions before you!
LuvAlwaiz-Jj9

Dear John by Nicholas Sparks

YES you want to try "THE TENTH CIRCLE" and "THE PACT" you will cry and laugh all night long and you will find yourself changing because of the feeling that you have just now read about. You will never put the book down. READ IT!!!

I recommend Anna Karenina by L.N. Tolstoy. It's so beautiful love story. Insanely real. I guess you have heard of it. It's published in 2 parts. You're gonna love it. If u need more info or something like that, you have plot summary on Wikipedia. link

I know a good sad love story! Here are a few:
The chronicles of Vladimir Tod
or if you want a real classic try:
Romeo and Juliet