Think about this for a bit; The answer is not black and white.
You have two friends. One is more stubborn and cocky, while the other tends to be more emotional and easily frustrated. One day, when you get in contact with both of them, you learn that they are blocked from each other. You decide to investigate.
The stubborn and cocky one states that after a game, they got into an argument about how the game was won. The more emotionall one had instigated the fight and the cocky one stated that he was right and the other was wrong.
A few hours later, you come into contact with your more emotional friend. He states that the stubborn friend was cheating. He called him out, but the stubborn friend denied it. An argument ensued between them, boiling to the point of the emotional friend blocking the stubborn friend.
You know about some of the methods your stubborn friend uses that are borderline cheating, but actually isn't. You know your emotional friend can be a bit over the top, but it doesn't excuse your stubborn friend's behavior.
Who would you support? How would you handle this situation?