Bug - Marrying Emit - Lot's of glitches, but this last may have broken my save!

Playing on a Mac running Sequoia 15.3.1, just downloaded the update that dropped today (Feb 25).

So I have one family I have been using for all the new sign in challenges and I remembered that there is a special trait kids born from Father Winter could have, wondered if Emit's kids would have any interesting trait and if he could be married and brought into household. The whole "romance" was glitchy, with some options appearing and then vanishing, and then Emit refusing any romantic interactions despite having a quarter full pink romance meter. Then I got beguiling for the sim and suddenly he accepted romantic interactions. Perfect. Except that any time the sims went on a date (he invited him once, he invited her once) the date ended abruptly after about a minute. 

Also he kept just abruptly leaving with no apparent reason whenever he was visiting.

Finally got him to agree to a proposal. Tried to do the custom wedding. The screen to set it up popped up but the categories were blank. Wish I had thought to screen shot it. When it had that issue, I saved off, closed out and came back in. Same issue. So I did the regular wedding. All the sims arrived. I sent my sim to kiss Emit. He didn't allow it and just walked off the lot. I then got stuck in the wedding. I hit end early and it said that I got a bronze medal, but the event was still going. My sim couldn't leave to go to college. I quit out to reload... but unfortunately my last save was during the wedding. So I am still trapped. I have spent a lot of time on this family, I don't want to lose them. Please help!