I don't think you need to step back messaging and talking. I assume he knows what is about to happen and that he will have to live without you. He is an adult, so I think it is really his own job to prepare for that, not yours to prepare him. And he may well regret it after you are gone, if you didn't spend all the time possible together now.

I would say, let him decide. Let him be there to support you.

Yes he knows what is happening. I tell him that you know that I’m not great . He says yes I know but not yet , it’s not time yet 

I don't think you need to do any more so. If he knows, it is up to him to decide how he wants to prepare.

And really, you probably need his support.

He does support me , I think I’m trying to protect him from it all 

 MargaretMary 

 Blue-girl  I really wish you was still here to talk. You would know just what to say to me. I miss you so much. I know I will see you over in the next life . My dear friend. God bless you see you soon . Hope you have saved me that  Spot like you said you would as we have a lot to talk about like you said. I miss our 6 o clock in morning chat  . You will your cup of tea  chatting till your morphine tablets kicked in then saying we were off to sleep and catch you the same time tomorrow . Big hug