心软不是病回头才是命
[xīn ruăn bù shì bìng huí tóu cái shì mìng]
'Soft-hearted Is Not a Disease, Returning Is To Find Purpose Again': This implies empathy or compassion isn't a flaw but sometimes revisiting or reviewing past experiences (or people) is essential. There may be advice here against staying stuck in painful situations while hinting that returning to someone/something meaningful can save one's fate.