Ask HN: How do you stay in touch with friends who are dying?

Not exactly HN question...

I would like to know, what channels do you use to communicate with your friends or family who have a terminal diagnosis? How often do speak with them - do you find that enough and would they like more contact?

What about after someone passes away? Would you like more support from the people around you?

Have you ever felt bad for not beeing supportive enough when the loved one of a close friend passed away?