Paris Hilton hit back after Mauricio Umansky claimed he left his job at Hilton & Hyland because he hadn’t made partner in a preview for the upcoming season of Buying Beverly Hills. “That’s exactly what happened,” he told a real estate colleague in the sneak peek. “So, I think I got kind of f—– by Hilton & Hyland. And when I say f—–, today I’m happy but there was a hundred agents at Hilton & Hyland,” he told a friend over drinks. “They did a billion dollars for the first time a year. I was 19.6% of their production and when I went to Rick [Hilton] and I said, ‘I’d really like equity and t…