It's always the husband

"Kate, Aubrey, and Jenny. They first met as college roommates and soon became inseparable, even though they are as different as three women can be. Twenty years later, one of them is standing at the edge of a bridge, and someone else is urging them to jump. How did things come to this? As the novel cuts back and forth between their college years and their adult years, you see the exact reasons why these women love and hate each other--but can feelings that strong lead to murder? Or will everyone assume, as is often the case, that it's always the husband?"--