Rui wanted to walk over immediately and smack some sense into the treacherous moron. But his rationality quashed that urge quickly.
They were in the middle of a battle. The most important matter was the successful completion of the assault on the expanded territory of the Kingdom of Nochus. Rui would be doing himself harm by being the one to escalate the matter in the middle of battle. He could not prove Ian had deliberately aimed at him, but Ian would be able to prove that Rui escalated the matter in the middle of combat.
He would be playing into his hands if he simply acted on his emotions, thankfully Rui was quite rational regarding the matter
But Rui realized he needed to be careful of Ian, the man's grudge was stronger than Rui had expected if he was willing to backstab a fellow Kandrian Martial Artist in a battle against other nations.
BAM BAM BAM!