That infamous night has taken a psychological toll on this apt. It's become the pink, sorry I mean purple elephant in the room.
Technical difficulties notwithstanding, once a couple crosses into the land of swinging or even potential swinging, then that becomes the established norm of expectations among most viewers. Just ask Anna and Alex and Eric and Kayla for that matter. And once it happens, it then becomes a bigger hurdle trying to go back to being a couple again. Swinging is a blessing and a curse.