Hi Sherry :)
Since I live with a hoarder I had to take drastic measures to save my sanity.
I decluttered and cleaned the common areas of the house, bathroom, livingroom, dining area and made these "No Clutter Zones"
I bagged & boxed up all his stuff and put it in his bedroom, garage and carport.
He had a fit but I stood my ground.
I told him that "I live here too!"
Every day I make sure to keep these areas clear of clutter and after several years now, he has quit trying to reclutter them.
Can you do your one room there? When he is away so as not to bother his dust phobia.
It would really help with your peace of mind to have one room where you could relax in comfort.
Slowly start by gathering up one bag of trash or clutter at a time and moving it out of there.
One thing that helped my hoarder to see himself was my playing episodes of "HOARDERS" on Netflix on the big screen TV. He has done a lot of decluttering since then.
Good luck & best wishes.
Please keep posting here :)