My Three Sons (1960)
S08E18 Green-Eyed Robbie
Episode Overview
Robbie Douglas feels a twinge of jealousy when his fiancée casually offers to help a charming student with his studies. Later on, Katie shares with Uncle Charley that this student was once her boyfriend. Charley casually advises her to tread carefully, reminding her that Robbie tends to be possessive.