>>10154466That's just how celebrities meet each other anyway, of course they're going to get into relationships with other celebrities if all they do is hang out at celebrity parties with other celebrities or work with other celebrities on whatever creative thing they're doing next.
Same reason why every time the Olympics comes round there's always stories about the athletes fucking each other - you get a bunch of people together who all share similar interests and move in the same social circles, they're gonna start fucking eventually.