According toThe New York Times, Spears writes inThe Woman in Methat Timberlake initiated the split with a text.

Keep in mind, both parties were only 19 when they started dating.

If it had been left up to me alone, I never would have done it.

Britney Spears and Justin Timberlake

Dave Hogan/Getty Images

To this day, its one of the most agonizing things I have ever experienced in my life.

Suffice it to say thatBritney Spears fanshave had it up to here with this man.

The Woman in Mehits shelves on October 24.

Britney Spears and Justin Timberlake

Ron Galella, Ltd.