She invited him back four times
Allan Hunt as Seaman Riley
Allan Hunt (born February 12, 1945).
Allan Hunt is an American actor, probably best remembered as Crewman Stuart Riley from season 2 of ABC's Voyage to the Bottom of the Sea.
He appears with Donna Reed in four episodes of The Donna Reed Show in various roles - "Winner Takes All" (Season 4, Episode 29), "The Make-Over Man" (Season 5, Episode 12), "The New Look" (Season 5, Episode 19), and "The Unheroic Hero" (Season 7, Episode 27).