Cuba and Canada, being known as good friends, often hang out together and eat ice-cream.
Prussia is insanely jealous and sometimes intrudes, plopping himself between Cuba and Canada, preventing the two from sitting next to each other.
Cuba gets kinda pissed when he does that, since he knows that Prussia is jealous and wants to have Canada all for himself. So when they see each other during World Meetings, they tend to fight over Canada. Only on rare occasions does it get physical, though. They usually bitch like women do XD
... Germany has to drag Prussia away.( Actually I kinda wonder why there are no Cuba X Canada X Prussia fanfics or fan art... )
I tried ;-;