深情不改必坠深海
[shēn qíng bù găi bì zhuì shēn hăi]
Unchanging Deep Affection Will Surely Fall Into Deep Sea: Symbolizes unwavering deep affection. Despite unchanging loyalty, there’s a risk of being 'submerged,' possibly meaning such love might not be reciprocated or understood, thus metaphorically 'falling' into depths (sea).