A few readers seem to have some trouble understanding what passive-aggressiveness is, why it is viewed as feminine, and why it is an indication of low socio-sexual rank for men to exhibit passive aggressive behavior. It's really not a difficult concept, basically, passive-aggressive behavior is an intentional attack on another individual made with at least some degree of plausible deniability concerning the attack, the intent, or the target. The reason for the plausible deniability because the passive-aggressive individual wants to be able to attack someone else without giving his target a justification for striking back.
Should he be questioned, the passive-aggressive attacker will usually affect to deny he was making an attack, or that he intended any such thing, or that the person he was obviously attacking was, in fact, the target. So, passive-aggressiveness is a form of attack that is intrinsically cowardly, conflict-avoidant, unfair, and is customarily utilized by weaker parties who feel they are unable to win in direct and overt confrontation.
This is a perfectly reasonable conflict strategy for women, who are on average smaller, weaker, slower, and less intelligent than men. It is also why they tend to be very skilled at it, as it suits their natural talent for the verbal and their abilities are honed by decades of passive-aggressive battle with each other beginning as young girls. The movie Bridesmaids is dreadful, but is noteworthy for the way it shows some of the extremes of female passive-aggressiveness, such as when the women pretend to be in agreement while directly contradicting each other. It's not funny after the first five or six examples, but it is illuminating.
Of course, this points directly to the correct way to deal with passive-aggressive behavior: confront it head on and force the conflict out in the open. It's a basic martial arts strategy. If he wants to kick, move into hand range. If he wants to grapple, stay outside. The main reason people avoid direct conflict and prefer the indirect form is the same reason that if you know you've only got a knife and the other guy has a gun, you'd better be sure it stays a knife fight.
While there is nothing intrinsically wrong with a man adopting female forms of communication, it is indicative of him possessing a similar relationship to other men that women do, which is to say he is metaphorically smaller, weaker, slower, and less intelligent. And a predilection for resorting to female tactics is a reliable indicator of low socio-sexual rank, which is why their heavy reliance upon passive-aggressive conflict makes it so easy to identify the gamma.