B) you may have missed the last line of my comment
C) trying to understand how this extremely contagious virus managed to not infect me while my wife and I shared bathrooms, beds, and car rides together. My best assumption is that I still carry immunity
Do you think it's impossible that the virus actually did infect you the second time, just asymptomatically?
The moral of this story is that vaxxed or not this virus can still spread, so you can only be safe about yourself. Wear a mask, wash your hands.
Good luck!
There are a lot of things people don't understand, that's why expertise is more valuable than intuition, heuristics, and feels.