原来我面无表情却爱你好深原来我不善言辞但爱你好真
[yuán lái wŏ miàn wú biăo qíng què ài nĭ hăo shēn yuán lái wŏ bù shàn yán cí dàn ài nĭ hăo zhēn]
'It turns out that I looked emotionless but loved you so deeply. Originally I'm not good at expressing, but I loved you so sincerely.' It conveys someone who doesn’t show strong emotions or speak often, but has deep, profound and true inner emotions, especially in matters of love.