"According to my friend the little deer, there are only a few things he truly regrets. First, not having loved his beloved when he had the chance, not having kissed her in every corner of her beautiful body, and not having asked her to kiss him to climax all over his body. What he laments most is that his beloved left, and he doesn't want to be with her again, yet he dreams of her every night, desiring her with all his might and soul.
What my friend laments every day is that he's getting older, and his beloved is slipping away from him. He knows that his body won't last forever, and when she realizes it, it might be too late. What he wants is to be with his beloved and immortalize their love in a video, both wearing masks so only their bodies can be appreciated, and remain immortalized without the risk of being observed or judged. That's something he's left pending, and he still wants it, knowing that soon he'll be a shadow of his former self. This will allow him to remember that he was once happy with his beloved, and that he truly loved a woman.
As he grows old, he'll watch the video, remembering that he was happy and lived and enjoyed his true love. But he knows that his beloved left him due to a whim, and he'll die without being able to forgive himself for losing her. He'll see her moving on, finding new horizons that make her happy, and he'll see himself as a poor devil with a decaying body, just a shadow of his former self, a bad memory that should have been erased long ago.
Meanwhile, my friend will be just a shadow in the darkness, disappearing day by day, until he's nothing but a bad memory. Until then."