I was in a house with my husband. His ex wife and her ex girlfriend/lover were there too. My husband tells me he'll be right back and walks in to a bathroom. He was gone for a long time, so I check on him, and in the huge bathroom was his ex wife walking out of the shower, and her ex girlfriend in an intamate possision with my husband and he's sitting on the tolite seat... And I hear him saying "Oh god yes". I can feel my self getting angry and I begin to cry and asking in the dream, what is he doing and why. He jumps up, like he's been caught and says to me " i told you i'll be back in a minute", Why did you come in here."Then I wake up

Your dream is a variation of an infidelity dream with some additional important symbols which should help you identify where or how you feel that your husband is "involved" elsewhere. To start, here are links to the definitions of your dream symbols...

bathroom: dreamdoctor.com/dream-dictionary/definitions/bathroom.html
cheated on: dreamdoctor.com/dream-dictionary/definitions/cheated-on.html
infidelity: dreamdoctor.com/dream-dictionary/definitions/cheating.html
toilet: dreamdoctor.com/dream-dictionary/definitions/toilet.html

While it is possible that the dream has something to do with your husband's ex-wife or ex-girlfriend/lover, odds are that they are symbolic of a current/past passion in his life which could be a hobby (like golf), work or some sort of guilty pleasure or addiction, which might be why he was in the personal & private setting of the bathroom.

How you feel in the dream is significant, because feelings in dreams are never disguised. So, ask yourself what has your husband done or been focused on recently that has made you feel angry and sad? That is likely to be what the dream is about.

Once you identify who he has been "cheating with," you might consider sharing the dream with him. If he knew how you felt, he might give you the attention you deserve.

Good luck!