OK. We've all been there when everything got on top of us, some more than others, where the housework has been the last thing on your mind, myself included..but I think from what I can see, a lot of that is just not throwing things out.
There's going to be a lot of stuff there that they've forgotten about. Her partner did say that they are getting round to it, maybe they were, there's only so many hours in a day and it could be one of those jobs that gets put back all the time for one reason or another.