So, Plame is his third wife? I believe he married her in 1997 (3 years after she was outed by Aldrich Ames)
Can you source her being outed by Aldrich Ames? I can't find anything except the Kristoff piece and that is vague. Marrying Wilson, diplomats are after all overt agents, may have been enough to put her on the beach. Being the wife of an ambassador is a lousy cover.