One too many insults

Mammon had enough of the insults always being thrown at him by his brothers, so he avoids them, much to their surprise.
The next time levi insults mammon, he has a breakdown due to his pent up emotions.
Everyone had tried to talk to mammon, everyone but Lucifer.
Lucifer must overcome his sense of pride and come face to face with mammon. Will they realise how similar they really are or will it end in another fight like it did with the other brothers?