I live in a house share and have had my mum to stay for a few days. It’s a lodger situation so the landlord is quite particular (understandably) re who comes in and goes out... I’ve been away with work and am absolutely exhausted, still have more to do this evening and very stressed. Get a text from my sister who lives locally (but prefers my house...) that they’ll both be having dinner at my house this evening so will meet my there (my mum has my key). My landlord won’t be happy with this, sister knows the rules but always trying to push it and world war 3 has kicked off when I calmly explained she wouldn’t be able to come in as well as my mum without me there. Aibu fair?