Hi Mighty my STBX lives just a few mins away from me in what was our house. I find that hard enough. It would be really hard having him live as close as yours does. I can relate to feeling like he's still your husband. It was 25yrsmic that told me to start calling mine my ex. I think you are doing great considering all the issues you have had to face.
Me 52 H 44 T9 M 5 BD 12/11 H split 8/12 OW moved in 12/12 OW gone for good 6/14 We get closer again 9/14 SD 13 Me 4 Grown
Accept what is...let go of what was and have faith in what will be.