Isn’t any form of arguing seen as being stubborn for no reason?
I’d much rather be in a relationship where you have the odd sulk every so often than one where you have full blown blazing rows.
Also anyone who thinks a relationship isn’t a little bit like a game is a bit silly. It’s a playful game, not a hurtful one. It’s nice to be the little wounded kitten and be sweet talked out of a sulk.