[DU] Room mates autonomously being mean/romantic

What traits do the room mates have ? 

Not sure how NAPs work on the uni lots (or if they do) but do you have ECO and could one be active that makes them behave that way ?

I am planning at the moment. Couldn't play earlier. But unfortunally it still bugs. I've Eco Living, but there is no active plan that could case the interacties. Alsof tried another household outside uni and it still exists.. 

Do you see mean or mischief interactions ? 

Could you maybe add a short video of what you are seeing ? Do all Sims also do the kissing part or just the mean/mischief one ?