Arnett officially filed divorce papers in Los Angeles on April 8. He's asking for joint legal and physical custody of the couple's two children, Archie and Abel.
The couple broke the hearts of comedy fans everywhere when they announced they were separating in 2012 after nine years of marriage. Following their split, Arnett was romantically linked to Billy Joel's ex-wife Katie Lee. Poehler has been dating The League's Nick Kroll since 2013.
Are you still upset about their breakup?