Chingyu's Faithfulness mod is my favorite lesser known mod. It may be more popular than I know, but I don't recall seeing it mentioned much on here. It's not just faithfulness, it includes romantic autonomy too. If you're like me and you want your favorite couples to stay together and not get into all the cheating that is so common this mod put a stop to it. If you want all the cheating and drama that goes with it, this mod will bring that too. I haven't tried that part out, but there are several traits available in both CAS and rewards that promise to make sims properly afraid of monogamy.
