I decided that I needed a room mate one for more money and one for company. So I'm having one of my oldest best friends move in with me, she lives far away so we are used to spending massive amounts of time with each other. My question is do you have to keep everything that is yours in your room with a lock just for safety? Or do you just trust to have everything out. Esp. since she will probably eventually have a boyfriend and I can't tell her she can't have him here because that would mean I can't have my boyfriend here. How do you deal with room mates?