It is the persistence that has been with him since he was young; it is the persistence of falling in love at first sight and wishing to be together forever; it is the wishful thinking of being reunited after a long separation; it is the sincerity of knowing each other and giving silently.
It is also a regret for losing something so precious.
In the past, you had the intention, but you never cherished it. If I had not accompanied you from now on, we would never be apart from each other.