Do you play one-sim households?

I mostly play with one sim. After a while they may have a partner or a pet. I’m not into family gameplay and having kids. Usually when I start the new game I will have already basics of the story in my mind. Sometimes I will make their lives based on famous people turbulences or things I experienced myself at some point like breaking up, throwing all away and starting new life on the beach lol. To keep things interesting I constantly turn their lives 180 degrees. I embrace autonomous flirt by their partner with other sims, because it gives me reason to move onto something or someone new after a huge fight. Also I have preferred set of traits I use and I see sims with them acting more unpredictable. My favorite of all times is erratic. The Yell at and insult interaction which they use by themselves from time to time gives me a lot of ideas, like maybe they have enough of this person or goes through psychological break down and need to holed up alone for a period of time. Another one I enjoy is gloomy, also many creative ideas can come from this trait. It can also nicely work together with erratic and I used them recently on one sim and results were interesting. My sims also had Emotional Bomb quirk from GF and it got to the point were he acted almost bipolar from time to time. Sure, the positive usually water down negative and interesting traits, but if traits are chosen wisely they may still have effect on sims behavior. To sum up, I play single sims as people who strive to find happiness and success but there is always something in the way like their mental health or troubled personality or other sims treating them badly. But still I always try to think of good ending for them as I don’t like my sims to suffer for no purpose. This kind of gameplay appeals to me the most.