In case anyone was wondering, this was made pre-release, which is why Mary's more tsundere-ish here than in the game. Still cute, of course.
Also, I like the idea of Team Skull Yell being supportive of her relationships.
Normally I wouldn't be able to imagine how someone could possibly not understand, but seeing as it's Kou I'm going to make an exception and just believe.
Is Mary her name in the japanese version? Or something like that? I haven't really followed Sw/Sh at all so I'm not too familiar. Last time I paid attention to these games was when the scottish pokemon trainer meme was a big thing.