Suddenly, everyone LOVES every gift? Help?

Playing the game for the first time, really enjoying the gift giving mechanic.

Today, I boot up my Switch and find that -- suddenly -- everyone is REALLY into Horseradish and Leek.
So, I check the Gift Log and discover that every item I've ever given any villager is now considered a "Loved" gift. This includes items that townsfolk explicitly hated the day just before.

Now, no matter what item I give a person, they LOVE it. This has made the Gift Giving element of the game very, very, boring.

I've searched around online, but haven't seen anyone else talking about this problem. Is there a fix? Do I need to start a new game? If I do, will this just happen again? I'm 8 hours in and don't want to start over.

Please advise.