Vanderpump Villa star Nikki Millman arrived at Chateau Rosabelle a bit later than the rest of the cast — but she quickly learned what a “dysfunctional family” her fellow cast members would become in the days that followed. Millman, who was hired as a server at the villa midway into the series, exclusively reveals to OK! that she initially made friends with her roommate, Emily Kovacs, one of the lavish estate’s housekeepers. “Being roommates with somebody, it pretty quickly makes you bond because, you know, you sleep your head next to each other at night,” Millman explains. As for the rest of t…