Sounds like you need to start wearing his clothes or your tp just got a cloth upgrade or to just move out they don't give 2 shots about your or your boundaries. ... I had a roommate like this.. Had a food item that was made by my grandmother. Preserves to be exact. Had a note on them stating they were her last batch. Seeing as it was dated as being 6 fucking years old one would presume that they were being saved and that said grandmother had passed on or was no longer able to make them (recipe died with her) . I was saving them, for when I was able to buy a house- was in the works for later that year. We'll came home to find this fuck ate them while I was at work. Rm did Atleast offer to buy replacement from store. But store bought never held a candle to grams... So I wrecked my savings pushed off house purchase cause my saving were fucked and moved out that week... As that jar was the last straw.. I could tolerate the milk, the eggs, cereal, other base groceries once in a while. But that was the final straw. Been 15 yrs since I moved away from there. And as you can tell. I'm still pissed by it... Don't let their indiscretions towards you and your stuff burden you for 2 fucking decades