husband's close friend, or husband's masculine double side

to me it sounds like someone close to your husband is about to betray you but your husband doesn't see the danger and won't listen even if you see the danger. He's "too close" behind you both--

or, it could be that this man is your husband's double. They both walk the same path in close proximity to each other and both are carrying suitcases (or briefcase in the double's hand). Your (feminine) husband doesn't see, hear, or speak. has no effect on the situation. However, the masculine double, the one who can best you in hand to hand, disables you and kills you.

do you trust your husband? do you trust that he doesn't have a double-sided intent that maybe he isn't consciously aware of, but an intent that could effectively hurt or betray you?