it was fun while it lasted

it was fun while it lasted

Something was an enjoyable or worthwhile experience even though it was impermanent. Often indicates that the speaker is resigned to the fact that it cannot last. Look, it was fun while it lasted, but this summer romance had to end sometime. I didn't imagine spending the rest of my life in that career, but it was fun while it lasted.
See also: fun, last, while
Farlex Dictionary of Idioms.
See also:
  • all it's cracked up to be
  • build (something) on sand
  • build on sand
  • variety is the spice of life
  • a good trip
  • good trip
  • put the dampener on (something)
  • put the damper on (something)
  • spice
  • be the spice of life