I'd probably keep it to myself for a bit....give it a chance to sink in.
I'd make arrangements in preparation.
I guess by the time I am hospitalised for the illness, the cat would be out of the bag. I'd like family and close friends to know to give them an opportunity to spend time with me. It wouldn't come so much as a shock to them, if I said nothing, and it would be therapeutic in it would start the grieving process for them.
RE: does true love exist
I believe it does.Have experienced it.