My sister is in her late 30’s while I’m still in my early 30’s, we’re both married/engaged. When there has been the odd time her and her partner have stayed over (they live about 2 hrs away) she always has some sort of excuse to come into our bedroom, sometimes in a morning while my partner and I are still in bed to ask us a question, or if she wants to fix her hair or make up when she’ll just let herself in and use my stuff, without asking or checking if I even have whatever it is she needs. To me our bedroom is a private area for us and our kids, especially while my partner and I are still in bed, it’s not for guests to just roam in to use my stuff as they please.
AIBU to get pissed off at her disregard of our private space? While I think this behaviour is ok when we’re young and single, now I think it’s a bit weird and an invasion of privacy.