I think the 'victim' knows about the stalking.
The other thought is: Uke is more behaving like a huge Fan than a stalker. I know fans of a british actor very well. They have every movie, picture (the officiallyones ), every interview, every everything of him, they even entered every fangroup (also the 18+ with sexy Fanfiction) etc. - but they're very respectful when it comes to his privacy. They don't stalk him in real life, they don't send him weird stuff, they dont cross the criminal /stalking line. Thats why i am not that angry at the uke. He copys him and is to much into him,but more like someone who admires a person to an creepy unhealthy extent, but would never cross the line.
He's a cute little copy-cat. A slightly creepy one, for sure. But a cute one who will most likely wisen up or get lectured and reflect on his behavior in time.
Also, I couldn't help but die at the arm-around-the-shoulder moment... Maybe because Jo Yohan was showing a tiny inkling of jealousy? Either way, I love this and I hope it continues to update!