Apartment Aggravation

I've officially lost a friendship because of the lack of landlord policy. I gave my key to Vanessa when I left for America. Not a day later, she calls to report that Nina 'is the master of this flat' and refused her entry. This is after Vanessa explaining that our medical kits are in the apartment and we need to have access. The 'master of the flat' was not willing to grant access, which resulted in an angry phone call from me, and the end of my relationship with said 'master.' The problem with a lawless society is just that. The lack of laws. I don't even know if I'm in the right or wrong. I tried to do everything--I told her I'd be gone. I brought up people in the apartment previously and told them that Natasha could stay if she came into town. And yet there are people living there the second I leave. I miss laws.