A more accurate description would be: she bought herself those things knowing she will never use them and most likely going to be amortized when we finally leave and the next "rentoid" comes in, needing replacement anyway. She doesn't raise our rent despite the market and our contract allowing her to do so.

Regarding maintenance think about issues like replacing broken hinges, changing an amortized shower head, replacing sealing rings in our sink drain etc. So far (in 2,5 years) never had any actual big issue which we couldn't fix ourselves, but if that were the case we would call a technician and send her the invoice.

In our country our situation is a little different. Our government introduced a package which was supposed to help families build or buy homes, giving a large sum of money without having to pay it back, and giving the same amount of money again with extremely low interest rates. This has caused housing prices to double in a few years. But it didn't just affect the housing market, it affected everything that you might buy for a new home (building materials themselves, furniture, appliances etc) because one of the conditions of this package is to renovate, build or buy a relatively newly built house/flat. For example the bed she bought was literally the same I had at home, and its price tripled (I reiterate, fucking TRIPLED) over a couple years. Other factors like the pandemic and the war have also affected the market.

Due to being the #1 country with the highest inflation in the EU (yay!) interest rates also skyrocketed, which makes it pretty much impossible to buy a house/flat anymore with the inflated prices. This has caused an insane increase in the number of people who want to rent, there was a time where barely any flats were available on housing websites. The market reflected the increased demand, people started giving out rooms, renovating old homes to allow parts of it to be rented, people with a lot of money started building apartment houses, etc. And of course the prices (after "rentoids" sucked up the market) were going to be higher to reflect the higher demand.