In college, my best friend and I both developed a crush on the same woman. We talked about it, and agreed that it was her decision on which of us to date, if either of us at all, or not. For the next few weeks, the three of us spent a lot of time together as friends, and he and I both talked up the other to her. Eventually it became clear that she had feelings for him, and although I was heartbroken, I was happy for them. They later got married and are still together, and we’re all still good friends.
I find most examples of relationships in pop culture to be maddening. I’ll give one example: 50 Shades of Grey. I never read the books, but the movie is ridiculous. The entire premise of their relationship seems to hinge on a brief moment in his office when she displayed a slightly deeper than superficial understanding of him, and suddenly he decides he wants an extended contractual D/s relationship with her that is all out of proportion with the development of their relationship. In the end, she presses him to show her exactly what his true sadism looks like, and after — against his better judgment — he obliges her, she storms out in a self-righteous rage, as if he hadn’t just done exactly what she demanded that he do. It was an absurdly flawed portrayal of BDSM and any adult relationship.