爱太短回忆却太长梦太短遗憾又太长
[ài tài duăn huí yì què tài zhăng mèng tài duăn yí hàn yòu tài zhăng]
'Love was too short but memories last too long. Dreams are too brief, but regrets linger on.' This implies feeling unfulfilled in love due to a lot of past memories and lingering regrets after lost opportunities for dreams.