Housemate troubles 3

We did have a civil conversation in the last week, but mostly it's been the silent treatment. Today I got back at the end of the weekend to find the chain on the door. This was interesting, since my housemate has angrily told me (as documented previously, I think) that her door locking proclivities were obvious, being that she simply prefers to doubly secure the door at night. I arrived just past 4pm.

Barrring the sad scowl I received for disturbing her by needing to get into my home, I wasn't troubled by her presence for a while. I'd have thought that someone who finds me so annoying would be grateful for my absence for the weekend, but apparently going away is simply my way of making her angry.

Two hours later, I was huffily required to clear my clothes from the clothes horse where they'd been drying. Only a few remained, since I had cleared all the dry ones from the horse before leaving. I had had two hours to eliminate my presence from the house, barring my bedroom, so of course she was right to be frustrated.
I popped down to collect the offending items, and eventually needed to cook dinner. Here again I caused her a terrible shock when she came down, because I was using a saucepan. She had stepped backwards in horror, so I felt obliged to ask what I had done this time ["Is something wrong?"], and was surprised to discover that it was only that a pot was in use by someone in the kitchen at dinner time.
I finished cooking my pasta quite soon and washed the saucepan, which remained unused while I was eating, as she chopped and prepared her meal. She cooks nice meals, and the smell wafted up to my room, but I know better than to poke my head out and do something as offensive as offer a compliment. I'd already received dark looks of suspicion when after washing up my meal I had had the temerity to wipe down some surfaces as well! As for rinsing out the sink (as I have been painfully instructed to do after once leaving dishwater to drain without staying to wash anything away), well that also got a death-glare.