I'm secretly in love with my best friend. He's everything I want in a man-loyal, an affectionate cuddler, a roommate who cleans up after himself. And don't get me started on how mouthwatering he is in a pair of gray sweats. But he's gay and can't give me what I crave. The dating app Missing Link focuses on polyamorous relationships, and since my cousin found two lovers, I set up a profile and cross...