Oops, I spent an embarrassing amount of time trying to figure out how to get a save file for you guys! Sorry about that. Anyway, the first save where this happened is the one labeled OG, the most egregious example is in the Waters family. Epiphany Waters has an inappropriate relationship with Bella Goth and Eliza Pancakes as a result of doing some type of romantic interaction with her husband around them. The husband is romantically involved with Bella but this was intentional, he is having an affair. I did not make him do a romantic interaction with Bella when the glitch happened, it was definitely with his wife. Also, Don Lothario is Epiphany's ex boyfriend, so the romance bar is intentional with him. It's just Bella Goth and Eliza Pancakes who are the problem. I tried to make Epiphany hate Bella so that the romance bar would go away, but it didn't work.
The second game with the glitch is Big City Living, the household is Nash-Kibo. This is the one after I installed MCCC. Hadassah Nash had an inappropriate relationship form after using a romance interaction with her boyfriend at the time, she managed to get a romance bar with her half sister Lacey Kibo and Lacey's wife Saya Yamamoto. I continued playing the game for a long time after it occurred and tried to use MCCC to eradicate the pink romance bars but it didn't work. It's been a really long time in-game and Lacey and Saya both died, their spirits were sent to the Netherworld because I didn't think to strengthen their connection. So they aren't in Hadassah's friends list anymore. It should also be noted that even though I put MCCC in, I don't have incest features enabled and never did, so I'm not sure how she was able to even get that kind of relationship with her half-sister, unless it's by design that the game doesn't view them as actually related.
The OG save has other examples of the glitch happening in other households. It happened at least one other time in Johnny Zest's household in Brindleton Bay, but I haven't touched that house in so long I couldn't tell you who was involved or how it happened... I just remember that after playing for a good amount of time, his wife had suddenly developed romance bars with people I hadn't directed her to interact with at all.
Also, when you open the game it says that there was custom content CAS stuff. I had briefly put in some CAS items but it was after the glitch already occurred, and I took them out after only a short time of playing. They were not in the game when it happened either of the times when the two biggest examples happened.
Here's the dropbox link:
https://www.dropbox.com/s/jzsn535fqkl1ogh/saves.zip?dl=0
