It was precisely because he regretted pushing her away back then that he could no longer push her away cruelly...
[I don't know how high the sky is, nor how deep the earth is. In short, there are four words: I am young and ignorant.
He writes and writes without knowing what is good or bad. The words buried here are just: typing the words will make you forget your worries, and explaining the words will wait for fate. ]