I think the film makers are saying: For the last time...sexuality is a continuum. Many if not most individuals will experience desire for both genders at varying points in their life's journey. There is no reason to doubt your sanity or your fundamental orientation. Oh, and by the way, open relationships usually don't work out. Most human beings are just too fragile for multiple partners in a committed relationship (no matter what they say), and someone always, ALWAYS gets hurt. On the other hand, if for a time, two committed folks want to openly explore and think they can handle it, be our guest. But don't say we didn't warn you.