一颗心为你安分守己一颗心为你适可而止
[yī kē xīn wéi nĭ ān fēn shŏu jĭ yī kē xīn wéi nĭ shì kĕ ér zhĭ]
The meaning translates to 'One heart stays faithful and obedient to you, one heart maintains limits with you'. A complex and nuanced way of expressing mixed emotions about a relationship, including faithfulness, restraint, and possibly some pain and compromise. It seems a declaration of love or admiration towards someone special but complicated as well