Who we love is a dangerous game. And as we all know, love, needs, and relationships can change over time. While some couples live a monogamous lifestyle, others choose to have open or polyamorous relationships, meaning that one or both people in the relationship can see other people. Open relationships often get a bad reputation in the media because there are a lot of negative stigmas about open relationships not being "real" relationships, or an option couples turn to only when on the brink of a breakup.
Of course, as is the case with every kind of relationship, sometimes open relationships are happy and healthy, and sometimes they are not. It all depends on the people involved in the specific situation, and how much love, respect, and honesty went into the arrangement.
Some might say that Adam Gillet cut his girlfriend a deal by opening up the relationship after she suggested a breakup. Others might say their relationship is growing in a new and healthier direction now that it is open.