To me, I don't think this is a regular dream. It doesn't really have the strong symbolism that normal dreams or nightmares have, nor do I think this is a spirit visitation. Sometimes these dreams can be caused by a negative entity who is trying to cause trouble, or sometimes if there is a lot of negative energy built up in a house (if there is a lot of constant arguing going on or mental illness this can easily be caused by the living).
I'm not sure if you are familiar with smudging--using smoldering dried white sage to clear negative energy from spaces...? If you aren't familiar, google it or feel free to ask.
Anyway, you are going to want to smudge your entire house, bottom to top, in every nook and cranny of the house. Try to do this once a week, especially concentrating in your bedroom and your side of the bed. When doing this, keep a neutral or positive attitude. It's important to be confident in what you're doing. In your mind, keep the thought that this is your space and you will not allow negative energy to remain in the house.
If you have any questions at all, please don't be afraid to ask.