KD Dillard and Mia CalabreseCharles Sykes/Bravo (2) Tap Here To Add Us Weekly As A Trusted Source Add as a preferred source on Google Before KJ Dillard and Mia Calabrese were roommates in the Hamptons, the Summer House stars had a connection through their extended families. "My mom and @miagcalabrese's sister were college roommates and friends," KJ shared via Instagram on Tuesday, May 12, with a throwback photo. "This is me as a baby with both of them." The picture, which was captured more than 25 years ago, quickly grabbed the attention of fans and followers.