No married Sims, relationships are messed up even without entering CAS.

Except for the one household that I created, relationships in all pre-existing households are messed up, across all the worlds I own. Not a single couple is married, and some have romantic relations with their child???

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 and their relationships are all messed up. 

Previously 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).

Some  even have romantic relation with their child. Which is a serous glitch...

This is across all the worlds I have: Willow Creek, Oasis Springs, Tartosa, Ondarion, Ravenwood.

So much money spent on a a buggy game that's becoming almost unplayable....If you could kindly fix this. Looking at the number of players facing similar issues, hopefully these types of glitches are top priority.