AITAH for telling a roommate that he is a guest in MY home?

My boyfriend recently moved into my two-bedroom apartment. Our original plan was to sleep in one bedroom and have him put his clothes and belongings in the guest bedroom because it has a bigger closet. However, one of his friends recently fell on hard times and asked to stay with us for about a month while he finds a new place. Although I do not know this friend very well, he is good friends with my boyfriend. I have met him a few times and he seems chill, so I agreed to let him stay. My boyfriend and I split the rent equally, but the utilities, renter's insurance, and internet are all in my name. The friend currently pays nothing except for his own food.

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​The main problem is that this friend has a significant amount of stuff, so much so that I actually had to rent a U-Haul to help him move in. I'm not used to having this much clutter. Even before my bf or his friend moved in, I would try to regularly go through my own things and get rid of things I'm not actively using. Obviously, I can't do that with someone else's belongings, so I asked him to keep most of his things in his room.

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​Unfortunately, the problem extends into the kitchen as well. Because he gets a lot of food from community kitchens, our cabinets are full to the brim with his cans and non-perishables, and the fridge and freezer are completely packed with his food. I understand that he may have been in situations in the past where he lacked access to food and now feels the need to hoard it, but it's frustrating that his stuff is taking up so much space.

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​To cope, I try to keep the food put away and somewhat organized, but he frequently leaves items out on the counter and places things in ways that take up unnecessary room. When I ask him about it, he gets defensive. The other day, he confronted me and asked, "Why do you get to keep your stuff out, but I have to put mine away?" Mind you, the items I leave out actually belong on the kitchen counters, such as my cutting boards and stand mixer. The items he leaves out are groceries like peanut butter, jelly, mayonnaise, and bread, which are things that I normally put away in a cabinet or the fridge.

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​In addition to that he recently said that he did not feel at home and felt like I wanted him out. This is where I may have been the asshole. I lost my temper on him and told him, "This isn't your home. You are a guest in MY home, and the least you could do is put your things away."

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​He got upset and complained to my boyfriend, who is now trying to avoid taking sides to keep the peace. To his credit, my boyfriend agrees with me that his friend is taking up a lot of space and that the apartment is starting to feel cramped with three people. However, he also feels that what I said was unnecessarily harsh, and he told me that I shouldn't start conflicts like that with someone who is most likely going to be living with us for a while longer. AITAH?