Ron leaves

Wearing the Horcrux puts Ron in a foul mood, causing an explosive argument with Harry

Extract from Harry Potter and the Deathly Hallows

by J.K. Rowling

‘Oh, you’re sure, are you? Right then, well, I won’t bother myself about them. It’s all right for you two, isn’t it, with your parents safely out of the way –’

‘My parents are dead!’ Harry bellowed.

‘And mine could be going the same way!’ yelled Ron.

‘Then GO!’ roared Harry. ‘Go back to them, pretend you’ve got over your spattergroit and Mummy’ll be able to feed you up and –’

Ron made a sudden movement: Harry reacted, but before either wand was clear of its owner’s pocket, Hermione had raised her own.

‘Protego!’ she cried,

And an invisible shield expanded between her and Harry on the one side and Ron on the other; all of them were forced backwards a few steps by the strength of the spell and Harry and Ron glared from either side of the transparent barrier as though they were seeing each other clearly for the first time. Harry felt a corrosive hatred towards Ron: something had broken between them.

Harry Potter and the Deathly Hallows

By J.K. Rowling