Chelsea and Rosamund met when they were both studying at Oxford University and quickly bonded over their many common interests, including the German language, in which they’re both fluent. “They became really close and hung out a long,” says a source. “They’d sometimes speak to each other in German.”
The friendship lasted right up until the 2008 election, when Chelsea’s mom, Hilary Clinton, was campaigning against Barack Obama. “They had a talk one night about politics, and Rosamund made it clear that she preferred Obamas’ political beliefs over Hilary’s,” the insider explains. “Chelsea really took it to heart.”
And after that, their friendship was gone, girl!