Sorry hopeless romantics, but Miley Cyrus and Patrick Schwarzenegger may not be the friendliest exes in Hollywood. The “We Can’t Stop” singer stepped out Friday night to attend a star-studded birthday for one of Katy Perry’s closest friends. But while hanging out at Blind Dragon, the former Disney star found herself at the same party as her ex-boyfriend. E! News can confirm the twosome did attend the same event and ultimately managed to keep their distance between each other. A source says, “They didn’t talk. They never interacted.” Insiders add that Patrick kept busy in the main lounge area with close friends while Miley headed to the karaoke room where she sang songs with Katy.