90 Day Fianc: Happily Ever After? star Sophie Sierra is revealing who she is dating now after Rob Warnes latest co-star girlfriend was revealed. Sophie and Rob began dating after meeting on Instagram. Sophie was the first one to message Rob after coming across his profile on a page about mixed-race men. Sophie and Rob were both keeping secrets from each other. Sophie was bisexual and Rob had cheated on her online with multiple women. Their marriage started falling apart when Rob and Sophie discovered these secrets. Rob and Sophie attended 90 Day: The Last Resort season 2.