Yeah, that's actually very weird since he himself has a Chinese name: Chan Wai-Kuan in Cantonese pronunciation (Chen Weiqun in Mandarin Chinese pronunciation). Some of my friends like to call him Xiao Wei (little/cutey Wei). But I know a lot of mainland Chinese fans nickname him "apron" since in Chinese "apron" is also pronounced as "Weiqun" (different tone, same spelling). I don't know if he knows it. But just in case he knows, I hope he understands it's a nickname of love.
So, maybe he was just trying to find a topic to talk to her?

But I think Patrick Chan has known Yuna for a very long time. I once saw a picture with many young skaters standing together, probably after a competition. Patrick and Yuna are in that picture. I think both of them are like 13 or 14. BTW, if I remember correctly, Evan is also in that picture. I hope I have it at hand so I can show it. I like that picture.
ETA: Wait, wait, I'm thinking very hard here, and I'm not so sure if Patrick is the one in the picture. My memory has become so bad. An early symptom of aging, I guess

But I do believe young Evan and young Yuna are in it.