Might be my turn. My live-in gf started having what we thought were allergy symptoms on Saturday. Monday she tested positive, but I didn't. We're quarantined but I was exposed thoroughly for 2 straight days and I do have symptoms of being sick (exhausted, and my fever went from normal to 103 today).
However, I have a long, long history of flu, strep throat, pneumonia, fevers, and colds, and I'm always unwell because diabetes + thyroid + sleep disorder, so it's possible I actually managed to get a different illness simultaneously, while super unlikely.
The shitty thing is we've been so careful. We're vax + boosted, never take our masks off inside except with friends / family who are equally careful. She met a friend outside on the patio of a bar Wednesday and it must have come from there because they both got it over the weekend. Just goes to show how virulent it still is.