Oh yeah, I tried every option. I just read on the Sims 4 forum that you should take the one with the achievement, get them angry with someone outside the family. Then, once they're angry have them do a mean interaction with their spouse and immediately apologize. Someone else replied it worked for them but I haven't been successful yet. I got my female sim angry, told her to do a mean interaction with her husband but I'm not even sure if she did it because as soon as she started speaking with him she went from angry to confident. I am going to try again off the home lot.
EDITED TO ADD: Taking them off the home lot was the key. Had the sim with the aspiration declare another sim an enemy, then she performed 1-2 mean interactions on her husband, did smooth apology and achievement earned with hardly any damage to their relationship. Whew.
Kerry