Hi Nicky
Deciding to go bunniless ... I think time will tell whether you feel this is right for you. As you say, more bunnies aren't on the cards anyway right now, and that's a good thing in some ways as it slows down our impetuousness sometimes to 'fill the gap' with all the love we have to give. The love rushes out as it did whilst bunny was alive, but has no destination .. for a short while until things settle down.
I think having rabbits with chronic health issues is incredibly draining. My first rabbit was a steep learning curve for me, but mainly because he had so many *big* health issues. Yes, I could deal with them all, but it took emotional stamina and resilience. You don't realise until this intense caring and worrying stops, the toll it's been having on you personally.
It was only down the line when I had rabbits that I wasn't perpetually fire-fighting or worrying about that I realised it can be different. That there can be periods, even long periods, of quiet joy and happiness being around them. Not to say my rabbits since then haven't worried me to bits, but it's not been a constant over all the 25+ years of rabbit keeping.
I made the decision to always have them in the house around me as I couldn't bear for them to be restricted to a hutch/pen/shed, however big it was. They become part of 'the family' - I see them playing around whilst I write this
It's a two edged sword, as having them nearby means I can spot the slightest 'off colour' moment, but it also means that when they are hurting I cannot turn away.
Sending you loads of hugs xx