It depends on the relationship you and your husband have. If you have not been getting along for some reason you may fear he will cheat on you and so you dream about it because it's stressful to you....
It means you should check his phone when he is taking a dump or most like (better because you dont get caght and he can't take it away unless he jumps out of the shower butt naked) and see if a girl...
It would seem generally to indicate that you might be dissatisfied with your relationship, but dreams really don't mean much. They are our subconscious' way of "filing" information gathered while we...