Hey dpas,
I changed some variables around in this patch so it definitely messed up your save a little bit. On Wednesday and Friday mornings, I made it so that the bathroom is locked until Ami's Friendship stat is raised, then it'll be unlocked. However, you can only talk to her in the bathroom so far. Since you're playing from an old save, one of the newer variables didn't get updated from when you first met Ami in the Onsen, which is why you're stuck on Wednesday morning. I made it so that once you've first met Ami in the Onsen, you'll be able to skip time afterwards.
As for Tori and talking in general, I didn't want it to change the time since the conversations are usually pretty small and insignificant, they're just small things I added for fun.
Sorry for the inconvenience and thank you for the report!