`Paul; In my not so humble opinion this closet thing is sign of her disrespect for you and you need to quit being a door mat. Take this for what your paying for it. I would consider this. Take a bunch of her stuff that she hasn't worn in the last year out of the closet put it down stairs and put your things back in. Tell her that doing the closet game with you is disrespectfull to you and if she EVER does it again that there will ramifications for this! If she does, I would build her a walk-in closet while she is on a trip in the basement and put everything in it. I would then pad lock the closet in the bedroom with my stuff in it. I also think you need to make an effort to clean up and get everything set up well. I would also try and see if you could build a bigger closet in the bedroom while she is gone as peace offering and in that closet there would be a area that is yours and yours alone. I know with the help of a construction buddy I could get a closet built and done in a week end. Stand tall and don't let her walk all over you.