I have been an emotional person, and lately I became a REALLY angry person! I never was this way, it's actually making my relationship fall apart! I've been told that it can be that there's a ghost in my house that is causing me to feel the way I do.. how can I really know what to do?

You don't have to have a ghost to have negative energy. Even being susceptible to negative energies around you like negative people, negative attitudes, etc is all it takes.
Sometimes it could just be a need of a change in direction in something in your life.

There is no supernatural... your inner anger is putting out bad vibes through what you say, how you look at him, your negative attitude... and so on.

You have to get to the bottom of what makes you angry because you are making yourself miserable and annoying those around you. :)

Best wishes,