Lovestruck: Cheating issues (Read for details)

The sim I was playing, Sim A, is married to Sim B and was visiting the flea market when another sim, Sim C, greeted her romantically autonomously. This caused Sim B to become mad at Sim A for cheating, which I believe to be unfair in gameplay as I'm gonna have to spend so much time repairing their relationship now! It also decreased Sim A's reputation, which is again unfair. 

I believe it would be reasonable for Sim B to get slightly angry and to feel jealous, but not to trigger things like "fear of cheating". It also shouldn't decrease the reputation of Sim A that they had another sim do a romance interaction on them.

Additionally, Sim C is a Good and Loyal sim and is engaged to another sim, which makes it seem odd that they would cheat autonomously. I believe that this should be overhauled so that autonomous cheating does not happen with traits that would prevent it. [He is an unplayed playable sim.]

Thank you for reading and I hope there are other people that agree!