Books like 'Bared to You' kinda spoiled me for anything less intense, you know? There's this one I stumbled on, 'The Swap', where the couples aren't just trading partners like gym memberships. It's messy from the start because one pair is trying to save a marriage already on life support, and the other seems picture-perfect but is really just bored. Watching them try to untangle the jealousy from the genuine connection that forms with the other person... it's not a clean process. The emotional tension builds from them having to actually talk about why they agreed to it in the first place, which is way more brutal than any steamy scene.
I lean toward stories where the 'growth' isn't just everyone ending up happy in a new configuration. Sometimes growth means realizing you were wrong for each other all along, and the swap was just the final, painful proof. The fallout in the last third of that book felt earned, not like a neat bow tied on top. For that kind of messy, character-driven tension, some indie authors on niche forums are digging deeper than the big mainstream titles that tend to sand off the rough edges.