疯过闹过但何曾分开过吵过二过但何曾离开过
[fēng guò nào guò dàn hé céng fēn kāi guò chăo guò èr guò dàn hé céng lí kāi guò]
Roughly translated as 'We've been wild, fought hard, but never separated; argued fiercely, acted foolishly, but never left each other.' This emphasizes resilience within close bonds and enduring through disagreements and chaos without breaking apart.