Feeling for you Kaz. My son who I'm trying to get back from Argentina has had operations on his lungs and will, when he goes back on the radar next week, wind up in this category too.
When faced with this kind of situation, I have developed a knack of allowing time to flow past, a bit like a waking dream. The main issue is that it is habit forming. No Internet or streaming in those days.
Good luck with the support and I feel for you both.