In addition to "Sealed With A Kiss", Brian Hyland had a minor hit in 1969 with "Stay And Love Me All Summer". The title might sound like it would be the opposite of this kind of song, but it actually portrays what the guy is wishing and pleading for rather than what's going to happen. Hyland was also the first artist to record "Save Your Heart For Me" in 1963, so he had at least three songs with this theme. And interestingly, Gary Lewis & the Playboys also charted with "Sealed With A Kiss" in 1968, so they had two hits with remakes of Hyland songs with this theme.