Hi MG!
You may recall the snit I was in recently when I found that "somebody" had moved around some of my computer files. My computer was the only spot in my life where I knew where to find everything. It was my "clean tidy house" oasis and it got mucked around with. I think I know just how you feel. There were even fingerprints on the screen. This is not one of those touchy feely computers... why would you have to touch the screen?
You aren't wrong. It's your stuff and you have preferences. Naturally you want to consider his feelings, but it's just as natural to be in "every man for himself" mode emotionally when you have that much stress around you. I think you're a champ for not blowing your stack.