Except for the one household that I created, marriage status in all pre-existing households are messed up, across all the worlds I own. Not a single couple is married.
One of my Sims had the Villainous Valentine aspiration, but there was not a single couple in town to break; everyone kept saying they are single. So, I switched control to other households to see what's up. Married couples are not showing as married nor divorced, just has a romantic relation (usually Sweethearts or Hot and Cold, or just a romantic bar). Example of the Goths:
This is happening in households across all the worlds I have: Willow Creek, Oasis Springs, Tartosa, Ondarion, Ravenwood. No mods or cheats; I only bought the game and it's expansion packs a couple of weeks ago and there's too many relationship-related bugs like this.
