Hi Giraffegirl,
I can relate to your pain. My recovering AW (10 weeks in) - I was an enabler and became codependent - and I whilst still under the same roof are sleeping in separate rooms. I am there to support my kids and my wife's recovery given the events of past two years (see my previous blogs) with no mind to the future.
It is so hard to think someone you loved may not be next to you in the future but it is your husbands journey and given the obviously difficult period you have been through you need to find strength to focus on you.
You are not alone on SR and we are all battling our demons of the past. Try not to think too far ahead, seek happiness in small "in the now moments" and most importantly what has helped me is to connect to others - a smile 😀, a kind word or listening in all encounters no matter how brief.
Take care and be kind to yourself