There is still a bug that causes permanent "Festering Grudge" in Sim relationships.
It's really painful when Sims who are best friends or lovers suddenly start abusing each other. It also prevents Sims from sharing family recipes.
It's really painful to have teenage Sims worry that they will be mean to other Sims and cause "Festering Grudge" when they reach the age where they want to be mean.
There is no workaround for console players. Please fix this ASAP.
Edit By Crinrict: Adjusted Title