This is gonna sound really cold- and it is, and I love Giyuu and I’m sorry for saying this but
Sanemi has more reason to be upset. He lost almost his entire family, his best friend, and crush.
Giyuu, meanwhile, only lost his sister and best friend, yet he let it destroy him. Sanemi didn’t- it spurred him to grow stronger.
Therefore, it’s just a little bit pathetic that Giyuu, who didn’t lose as much as Sanemi, let it break him when Sanemi who lost more, only grew stronger because of it.
Again, I love Giyuu with all my heart, but still.