Probably the thing that helped was the other friend told him the person who wronged him was 100% wrong.
When you are wronged, often others or the enemy will whisper in our ears that it really wasn’t so bad, that they didn’t really do anything wrong, that we’re taking it to personally, etc.
But inside you know that you are in the right and the other person was wrong and trying to defend yourself in your own mind is a losing battle.
I find it is often very helpful when someone else acknowledges it and lets you know it’s not just your imagination, you aren’t reading the situation wrong, you’re not being overly sensitive.
Ironically the friend passed judgement by stating it was wrong for op to judge.
Hmmm