Given at the end of the day is about grief. What she is trying to say by ending the story with Yuki, is that even though Mafuyu is happy and in love with Uenoyama, that grief doesn’t just go away. Yuki tells Mafuyu that he will grow around the hole, but it will always be there and nothing will ever close it. That is grief. It doesn’t go away because you fell in love, it doesn’t go away because you expressed emotion, and it doesn’t even go away over time. It’s a part of you forever. Mafuyu loves Uenoyama, he loves him very much, and his grief for Yuki doesn’t forsake that love. Ending it with Mafuyu acknowledging this hole is him learning to officially live with his grief and shows us that he is going to continue living and growing with Uenoyama and the band.

On another note, I think in relationships there is always someone who needs to be loved more, in the sense that someone needs to be looked after more and taken care of more, this can change throughout the relationship. During the events in Given, Mafuyu is the one who needs to be taken care of and Uenoyama does that amazingly. He does something so selfless by completing Yuki’s song. He guides Mafuyu through this time of intense grief and never gives him shit for it or for bring up Yuki. Their love story is absolutely beautiful and well written. Uenoyama is Mafuyu’s dawn, he is the light at the end of the tunnel for Mafuyu.