Another idea: Love triangle scenario
Your sim is in a love triangle with two other sims. Your sim either has to pick one sim to pursue a relationship with or compete with another sim to win the heart of a sim.
This would be fun, kind of like harvest moon (maybe stardew valley, I haven't played that much) where you have potential towns people you can marry but you are also in competition with other people and certain decisions you make will bring you closer or drive your competition closer to your target.
