Thank you all for replying. I'd just like to point out that I am in no way disillusioned with my T's reaction, on the contrary. I appreciate his honesty and humility and I am glad he is confident enough to point out when there is nothing he can do apart from just being there.

I think the issue is me and how I look for problems where there are none. I will have to bring it up with him again because my abandonment fears nowadays seem to be triggered by someone not breathing loud enough ffs. I'm not sure what type of attachment style I have, but there are definitely elements of insecurity (or perhaps I crossed the border into paranoia by now). I'm just really, really, really scared of losing his support and his continued presence at a time when everything else seems to be going t*ts up.