Keep yourself positive, man - keep boosting your immune system. Spend lots of time with your S - as much as you can.
If I learned anything from having several family members who have gone through this same thing, it's that you should have no regrets.
IMO This situation puts you in an extraordinarily unique position. If it was me in your position, I would make sure not to slip into BD-era behaviors (no pleading etc), but if I had something I wanted to say, I would say it.
Just dont have any expectations on the other end.
Keep strong man - we are rooting for you and praying for you
