How do you create drama in The Sims 4?

I add in stuff like surprise alien pregnancies, single parents (due to divorce or having kids before marriage) and early deaths. My current legacy heir had just moved in with his girlfriend (who had recently given birth to his child) when she died in a fire. That really spiced up my game because now my sim is raising his daughter alone and having to deal with the grief of losing his girlfriend (kinda dark, I know, but it gives the game more variety). Cheating gets old, but it's more exciting if the cheater accidentally gets pregnant with or impregnates the other person. Or if they abandon their family for their new fling. Other exciting events are adoptions (you can play out how it affects the rest of the family and how the adopted kid has to adjust to their new family-- do they feel out of place? Have a rebellious streak? Etc).
I just make stuff up as I go I guess and try to explore more facets of the game.