叹花开你未离望花落你依在
[tàn huā kāi nĭ wèi lí wàng huā luò nĭ yī zài]
Sigh That You Did Not Leave When Flowers Bloomed, And You Stayed Even When They Fell shows unchanging feelings toward a beloved over time; it could suggest that someone remains regardless of changes, or even challenges that might occur.