Since joining Summer House at the start of Season 10, Mia Calabrese has quickly become a fan favorite. Source: Jon Kopaloff / Getty Viewers quickly became obsessed with her relationship with bestie Ciara Miller and the rest of the cast, and now that there's drama brewing in the real world, fans couldn't wait to hear what Mia had to say about it. Calabrese made her debut on Watch What Happens Live! this week, where she opened up to Andy Cohen about the devastating betrayal from one of Miller's best friends, Amanda Batula, and her ex, West Wilson.