再苦再累不说再见再吵再闹不说分手
[zài kŭ zài lĕi bù shuō zài jiàn zài chăo zài nào bù shuō fēn shŏu]
'再苦再累不说再见再吵再闹不说分手' translates into 'No matter how hard and tired we are, don't say goodbye; No matter how loud we argue, don't break up.' Expressing persistence, commitment in tough times and unwillingness to give up in a relationship no matter difficulties.