sorry for the inconvenience, wenispenis, if that is your real name.
just tested this with a friend who has a windows pc and we were able to recreate the bug, and we found a fix. for the last few dialogues from cuz, let the text play out all the way through, and then proceed. we were able to recreate it by spamming through the section, so maybe that is the issue?
if not, try booting the game up from the beginning, use the "message skip" feature to skip through all the day until you reach day 7 and then play normally from there.
hopefully this fixes it for you!!