Your Marriage Can Survive an Affair...Say the Stats

A great article posted here offers up three couples who are doing the hard work of piecing their marriage together after betrayal. The emotions are so raw that it's hard to read...their pain is palpable. Still, it offers up some good resources (with the notable exception of Betrayed Wives Club) and depicts the devastation wrought by affairs.
What are your thoughts? Can a marriage be better after betrayal? Or will it always bear the scars?