One of the suckiest and most frustrating facts of life is that sometimes relationship just end, often without reason. I truly believe that sometimes both men and women simply run out of love, even when there was a lot of it in the beginning
Greg Behrendt, Amiira Ruotola-Behrendt (2005). “It's Called a Breakup Because It's Broken: The Smart Girl's Break-Up Buddy”, p.28, Harmony