If S19 is staying with you I hope you are quarantining him from yourself. He can be contagious even without symptoms. I know every living situation is different but an ideal setup would be separate bedroom, separate bathroom, masks and more than 6 feet separation within the house for both of you. This virus is no joke - don’t mess around.
If he asked you not to tell W, don’t tell her. If he was ill that would be one thing, but he might not even catch it, in which case I would respect his wishes.
