I've yet to work with a couple with whom I thought, "Well, this person is THE RIGHT ONE!" 

There are ALWAYS two sides to every power struggle.  Often, these sides aren't even in opposition.  It's just that each person is so stuck trying to convince the other of something, they can't hear anything. 

It's fascinating to see how very genuine each partner's desires, wants or needs are and how invisible those are to The Other person who has desires, wants or needs of his or her own that aren't being met. 

When two people want two different things, which is going to happen with two different people in a life together, it can be difficult to drop your point long enough to cross the bridge, and really hear what The Other person is going through. 

Many couples come to me asking for help with "Communication."  In fact, it's rare that a couple comes to therapy without this on their To-Do list.  "Communication" can mean plenty of different things.  But often, people find it very difficult to listen to their partner when they don't feel like they are being heard.  This creates a stalemate with people screaming at each other, giving the silent treatment, or trying other useless efforts like name-calling or sarcasm to get across what they so desperately want to be understood.