I would talk to her in person when she comes back. Or text her asking if you two can have a house meeting to chat since she’s been gone so long. Then mention hey it really bothered me when you moved my stuff all the time before, can we come up with a compromise so you don’t get frustrated when I do x, and I don’t get frustrated when you do y?

Well given how property rights work, paying for rent > someone’s flow.

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