Joe Jonas is furious about Sophie Turner’s romance with chic Peregrine Pearson

But last month, the warring exes settled their divorce and reached a custody agreement.

Days later, Sophie went Instagram official with her London boyfriend, the future 5th Viscount Cowdray.

“When she first met Perry, everyone – especially Joe – assumed it would be a quick fling. But they have been together for almost a year now and it is very serious,” the insider said.

‘She says she’s so much happier with a Brit, that Peregrine is a better fit for her than Joey ever was. It’s clear to everyone that this isn’t a rebound romance. It’s the real deal – and Joe is burning with envy!”