Netflix viewers cheered him on during all the ups and downs of their rollercoaster relationship, and were firmly on his side when he was eventually left at the altar on his wedding day.And the drama kept on chugging after co-star Lauren Chamblin – aka LC – revealed they dated after the cameras stopped rolling, until she found out he was allegedly seeing someone else at the same time.JustJared states a fan posted a now-deleted screenshot of a Facebook post on Reddit just last week, titled ‘My close friend’s co-worker is dating Mark!!’, appearing to show him with a mystery blonde woman in Ohio.Sliding into the comments below, LC wrote: ‘This is awkward because I live in Atlanta and I’ve been dating mark since the beginning of May….