Sims date ends due to 'too many mean or mischievous interactions'

Hi, this is still happening. I've had this issue in several different save files recently to the point that I just can't play with a couple any more. They're married, always with positive traits with a close family relationship and wholesome romantic one . In one save I had them both set to like mischief and pranks and in another due to this issue I set them both to dislike pranks and mischief thinking it would prevent them from autonomously using mischief actions. In both cases they constantly autonomously choose mischief interactions, which mean they both get repeated negative moodlets. In both cases they have max friendship and romance but can literally never get through a date without one of them ending it early due to mean or misevious interactions. I will queue up exclusively positive interactions and they'll autonomously add a mischeivious one in there. In all the saves I've tried recently they end up with a strained relationship pop up due to this. I accepted the strained relationship once and discovered that with this issue of autonomous mean interactions there was literally no way to save their relationship, as despite me doing nothing but queuing up positive interactions they would still be mean and end up with hurt moodlets. I really hope this is something they can fix beacuse this just makes it unplayable for me :( 

This is happening today in my game. Not only does a single mischief interaction cause the date to fail, but my Sim is autonomously queuing up back-to-back mischief interactions (I mean, when her date left the lot, I watched a huge stack of mischief interactions clear from her queue that I couldn't previously see). I turned off autonomy for active sim, made another date, and queued a stack of small talk and other friendly interactions and she still autonomously triggered another mischief interaction between fulfilling my queue. My game is completely un-modded. I own every EP and GP, as well as most of the Stuff and Kits. Oh... and this is a Good Sim, so it's totally against her nature to do mischief interactions. I rarely see her do them autonomously except on prank day (which the task bar says she ignores- she does not) or with her sisters. She might be the only Sim I have who doesn't autonomously troll teh forums or prank toilets, so it just feels like obsessive self-sabotage specifically on dates.

I was controlling my Sim Valerie, the ENTIRE time; I have autonomy off and was running small talk and flirting responses the entire date. There were no mean or michievous interactions. They were satisfied, with good compatability. All of a sudden I got a popup asking to change their romance dynamic to "strained" and this notification.

I have been getting a lot of negative relationship scores from positive interactions too. At first I thought it might be from a sims having a dislike (eg. dislikes flirting or something) but I checked those and the my sims were compatible. I tend to check all romantic interaction, as positive, for my sims. I am not sure if this is related but, I get a lot of popups in game asking if a sim likes flirting, or other romantic interaction, even though I have already checked it in CAS that they do. 

PC. No mods. No CC. All packs except the last one and most kits.