The battle to manipulate a relationship comes in subtle forms and can be dubiously exercised by either and/or both partners. Subtle forms of manipulation may go unnoticed or it can the blatant. People usually choose methods standard to their gender. Women since childhood have found that crying or pouting often help them get their way. Little boys, on the other hand, learned using charm on his mother usually bailed him out of trouble and/or yielded rewards. Unfortunately, these fraudulent practices filtered into many marital relationships.
As adults, many females continue to manipulate with tears; however, now in cahoots with her femininity and flirtation. Men discover that his charm only works when the women involved is susceptible to his advances but as a back-up he has bullying and anger as a tool because most women rather yield than get him mad. Though manipulation is a practice that distracts from a nurturing relationship, it is not as deceptive and emotionally draining as passive aggressive behavior.
According to Wikipedia, passive-aggressive behavior is the indirect expression of hostility, such as through procrastination, sarcasm, hostile jokes, stubbornness, resentment, sullenness, or deliberate or repeated failure to accomplish requested tasks for which one is responsible. Couples that exercise passive-aggressiveness put their relationship at high risk of failure because they bury the problem with emotional resentment. I'm no psychologist but it stands to reason that healthy open expression is the key to overcoming this behavior.