#im using guy in a gender neutral fashion
CW: Death threats
I think a good fun rivalry character dynamic could be an annoying guy and said guy’s almost entirely stoic target of annoyance.
If for example the target was restrained under a pile of rocks or something the annoying guy could taunt them by saying “You want me bad”
To which the target would respond with “I want you dead” in a rather grim tone
This would then cause the annoying guy to cross their arms, nod their head exaggeratedly and go “You want me” before walking away.