
I don't what goes inside of ppl heads sometimes. Like They all be crying "wahhhhhh it's unfair to Ue. I don't like how mafuyu is still love Yuki or treating ue. Or he will ue if Yuki was alive."
First of all. Yuki and mafuyu relationship was bound to fall at some point. Why? Because they were too dependent on each other that they were practically suffocating each other. They WERE bound to fall. Yuki was not just friend or bf to mafuyu mind you. HE WAS HIS SAVIOUR. Yuki and his mom were the one who saved mafuyu and hi mother from his dad. So it's very clear that mafuyu cannot and never will forget about Yuki.
Second of all. Ue understood what most you all can't or never will understand. He understood Yuki place in mafuyu heart. That's why he finished his song to mafuyu not because it was song from Yuki but Because It was LOVE SONG FOR MAFUYU. He understood what is like to love mafuyu that's why he finished that song. This doesn't makes him weak or pathetic or unfair to him. It's makes him understanding,