Passive aggression is an evil act done by a coward, express yourself fully and without cover or concealment.

To express yourself in a passive aggressive way is to communicate something negative wrapped in a thin veneer to allow yourself an out when the person you are talking to expresses distain for your statement.  The problem is that often the distain one feels is because the statement was made passive aggressively, not the negative substance of the statement itself.  We are all brave and cowards, to have a healthy relationship, be brave when communicating, it will empower your partner to do the same and it will bring you closer.