I think that jaekyung doesn't like/have fellings 4 our uke, it's just a obsession of his, almost like the uke was his little toy in a "toy day" to school, plus heesung its so cute and is the best choice to uke, but we know that end with a toxic power radioactive relationship inter uke and jaekyung 
uke it's already in trouble, and now.. I'm a little worried 