他眼似海却不为我蓝
[tā yăn sì hăi què bù wéi wŏ lán]
Roughly translates to: 'His eyes are like the sea, but they aren't blue for me.' Here, the user probably wants to say that someone (a loved one) appears deep like the sea, however, his emotions or love don't include them, which shows a sense of loss and unreciprocated love.