时光深知我爱他
[shí guāng shēn zhī wŏ ài tā]
'时光深知我爱他' means 'time understands my feelings towards him well' where time here stands for history or experience. The user may want to emphasize their long-lasting or unwavering emotion. Also in some situations it may indicate that even if the rest of the world does not understand, the duration during which she had loved that man would remember her love for him, showing a very sincere attitude.