花开若相惜花谢若相依
[huā kāi ruò xiāng xī huā xiè ruò xiāng yī]
Meaning 'If flowers bloom, we cherish each other; if flowers wither, we cling to each other'. It romanticizes the notion of being close during all times - whether good (flower in bloom representing flourishing moments) or bad (fallen petals suggesting hardships).