Did I rip through this in two hours? Yes I did, in part because I’ve just learned that this fic author is actually the author responsible for the novel In Memoriam, which was shortlisted for every prize under the sun.
Give me all the Potterverse characters dealing with postwar guilt/PTSD. In The Bolthole, 20-something Draco lost a surrogate father who took him in after his Death Eater days. His good friends Ron and Hermione suggest that he not be alone and that their bestie Harry Potter look after him for a little bit. However, thanks to years of PTSD and a lifetime taking care of others, 20-something Harry has become a reclusive hoarder living in a house that should be condemned. The last thing he wants to deal with is his enemy turned acquaintance turned roommate.
Of course he does figure out how to deal with Draco, and this becomes a very slow burn enemies to lovers, with a focus on healing past grief/trauma.