According to Jim - The Six-Week Curse

Seizoen: 7 - Aflevering: 15 / 161 - Eerst uitgezonden: 13 mei 2008 - Episode ID: 5814

Dana puts Andy under hypnosis to learn why all of his relationships don't last longer than six weeks. Upon learning that it's due to Andy's low self-esteem, Dana decides to boost up Andy's confidence, but she ends up making things worse when Andy starts flirting with other women while on a date with Emily.