Robert Pattinson and Kristen Stewart in happier times
However, the couple still has trust issues, due to Stewart's promiscuity. Sanders isn't the only guy she has been lusting after. Much like Stewart and Pattinson fell in love on a movie set, she is not exempt from and has done it again regarding other men (not just Sanders). Pattinson really has no reason to trust her and he's going to find that out the hard way.