so my sister recently moved in with me and my fiance. I let her use my key from time to time but lately she takes it and goes places without telling me. I need my key to leave our apartment because it has this special piece on it that gives u access to the building. I have told her countless times to just ask me because she doesn't no what I have planned for the day plus I shouldn't have to ask for my key because I paid for my shit Now today I planned to study by the pool instead of our apartment. Now she's nowhere to be found. I texted her and here's how that went.