Okay but consider
After Yuuri moves to Russia Yurio’s crush on him comes out and Yurio is horrified both because he knew it would never be requited but also because everyone at the rink mocks him.
Some bordering on cruel (Mila) others obliviously mean (Victor)
This crushes him because he was starting to move past it but he now he thinks he can’t even have friendship with Yuuri
Embarrassed and close to tears he finds a surprising ally in Yuuri who takes him out to lunch just the two of them and confirms he can’t reciprocate but then shares his teen crush on Yuuko and how hard that was but also how he learned how to be happy for her and Takeshi BEFORE Victor and him happened and points out he’s still friends and close to Yuuko and that this doesn’t have to ruin their friendship.
And they bond over the shared pain of unrequited teenage crushes and move past it and then when later Yurio realises he has romantic feelings for Otabek Yuuri is the one he goes to for advice.