After watching some gameplay, I was thinking about getting this game on Switch when it comes out, but I looked up the relationship mechanics, and you can't even feign polyamory. (And found this thread by searching for the topic lol). Like, the game potentially punishes you for having multiple relationships. Which makes me lose interest in the game, a lot. I'm not here for aggressive monogamy. XD
A good start would be a setting where you can just turn off the Jealousy, so you can have multiple relationships without issue. But that's just a band aid.