[ARCHIVED] Romantic Relationships decay/become negative fast with no interaction

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What is your current game version number? 1.111.102.1030 DX11
What expansions, game packs, and stuff packs do you have installed? Expansions: Everything with the exception of For Rent Game Packs: Everything with the exception of Dream Home Decorator and Journey to Batuu Stuff Packs: Everything with the exception of Crystal Creations, Moschino, Laundry Day, Toddler, Fitness, Bowling, Kids Room, Movie Hangout, Cool Kitchen, Luxury Party Kits: I own Simtimates, Pastel Pop, Blooming Rooms, Holiday Celebration, and the Grims Ghoulish Guitar (this should really be a list with radio buttons)
Steps: How can we find the bug ourselves? I don't know. I have tried repairing my game several times.
What happens when the bug occurs? One interaction will cause my married sims with incredible compatibility and chemistry, who are extremely satisfied in their relationships, to have empty friendship and love bars and their married status completely disappears. This has happened with base game sims and sims from the gallery.
What do you expect to see? The relationships should not decay so quickly. What a pain in the *.
Have you installed any customization with the game, e.g. Custom Content or Mods? Never used.
Did this issue appear after a specific patch or change you made to your system? No

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I don't have screenshots, they would just be of empty relationship bars. I rage quit.