Raven is an elitist asshole who supports the Macintosh foundation.
Raven once did a Macintosh advert as he held his Mac cup. He believes himself to be better than everyone, at least in part because he uses a Mac. He likes to drink French coffee, rather than domestic. In his smugness, he muses that people do not even know what France is. He then admitted to being an elitist asshole.
At an unknown point, he became friends with Charles and started to have coffee with him at the Mac café.