爱你情深似水爱我情纯如云
[ài nĭ qíng shēn sì shuĭ ài wŏ qíng chún rú yún]
'Loving You, I have affection as profound and steady as water, while loving me is like a pure cloud floating freely.' Here lies an expression towards different types and depths of romantic sentiments - unwavering, deep love for someone else versus a more ethereal, less bounded affection towards oneself. It paints a vivid comparison between steadfastness and freedom.