My fiancé and I are my sister's servants.

I let my little sister stay with me after she lost her apartment, thinking I was being the good sibling. Fast forward—she never paid a single bill, treated me and my fiancé like we were her personal staff, and made our lives miserable. She finally moved out, but now she refuses to give back my house key! Her reason? Our mom (who doesn’t even live here) told her she could keep it. I’m the one paying for everything, yet she thinks she’s entitled to waltz in whenever she wants. Am I losing my mind, or is this totally out of line? Should I just change the locks and call it a day, or is that too harsh? What would you do if your own family pulled this stunt? 😤🔑 #FamilyDrama #FinancialConflict #Boundaries #HomeSecurity #RomanticRelationships