吵吵闹闹依旧不离不弃分分合合依旧相濡以沫
[chăo chăo nào nào yī jiù bù lí bù qì fēn fēn hé hé yī jiù xiāng rú yĭ mò]
Through Noisy Arguments and Breakups We Stay Together Anyway: Despite all conflicts and separations, this expresses a commitment to always stand by each other regardless of the challenges faced.