Why did Tom Buchanan break Myrtle's nose? For what reason?

Tom and Myrtle were having a loud and vicious fight about Daisy. During this fight, Myrtle repeatedly yelled Daisy's name, after being told to stop. Tom felt his mistress had no right to flout his wife's name. When Myrtle refused to stop, Tom broke her nose in anger.

This was at the party right? Tom broke her nose because he didnt like the way Myrtle said Daisys name. So he broke her nose with his open hand and blood gushed out of her nose like a faucet.