10. LeAnn Rimes and Brandi Glanville
These two dislike each other for one of the oldest reasons in the book. Glanville’s husband Eddie Cibrian left her for Rimes back in 2009 and there’s no sign that the two women will ever be anything but committed enemies. More recently, Cibrian is rumored to be cheating again and if true, might give Rimes a little taste of what it feels like to be the wife who was left behind.
