Throwing in my theory. I think Jenn and J had it during that week they weren’t in any videos. Possibly even had a more severe case. The mask shows up. Tim gets the sniffles and 1st reaction is that he needs to test. If Jenn didn’t have it, why would you instantly think you need to test? And why would she randomly wear a better mask?…because FOMO. She had Covid and didn’t want to miss that event.