Do you realize that this is a way of attempting to manipulate your T into doing what you want?

I understand that it is painful. Putting the whole "someday I won't be here" part aside, he is telling you that he doesn't want to walk on eggshells around you, or get backlash from you when he doesn't respond to your texts, etc. He is trying to help build a healthier relationship - and you are rejecting it and trying to force him to be what and where you want him to be.

I understand that your the client and he's the T....but he is in a no-win situation here.