Basic template: Person A has a lifestyle which they had not questioned, but then they have an opportunity to re-examine their life and realize that they could find greater happiness by making a big change with Person B.
In a different world, you might see a movie with a Big City Lesbian coming home for Christmas and finding herself actually attracted to the guy who runs the hardware store.
Of course, no one would make a movie with that plot today. Certainly not Hallmark.
That would be the ultimate troll. Itd be great to see the hysterical reaction.
Would never happen, but its still funny to consider.