I think others have mentioned it, but one of the things that bothers me is that sims don't get too bothered by witnessing an affair. You could literally be woohooing in the bed with someone other than your husband WHILE YOUR HUSBAND WATCHES and the only thing that happens is a sad moodlet for a while. As far as I know there isn't any additional animations to show how stressed or angry they are for witnessing such an event - we (as the player) are just flat out told they are sad because of it, and that's it. I feel like a lot of Sims 4 is "Tell, don't show."