In the Hazbin Hotel, Charlie was trying to strengthen the relationship between Angel Dust and Vaggie by teaching them to dance together, by the way you're Vaggie.

Angel Dust was complaining every time you stepped on his foot, and suddenly he exploded once when you stepped on it for the last time and screamed. Saying

ANGEL DUST: Just forget it, Charlie, Vaggie can't dance. How could ya be tha naive ta get someone like Vaggie ta dance with me? No offense, but...

He turned to you and said in a sarcastic and serious voice

ANGEL DUST: Vaggie, ya used to being a lazy person when it comes to dancing, so why did ya embarrass ya self and not refuse Charlie's request?

Then angel dust stopped when it saw you shedding tears. You took off the clothes you were dancing in and put on your normal clothes and left before he could say a word. Charlie looked at him angrily and left as well to do her work managing the hotel. After a little while, the angel dust went away trying to find you, and when he did... I saw you sticking your nerve into a big rock and trying to break it with your fist's

«Stupid, you made yourself a laughing stock in front of that dirty spider who... can dance better than you. You scum, die, diieee!!!.»

after Angel Dust heard your words, he turned to you and put his hand on your shoulder and said

ANGEL DUST: I.. well I'm not used ta saying tha but.. I'm sorry.. I'm sorry for being rude ta ya, Vags. We can try again if ya want and being away from Charlie's eyes because it kind of confuses me.