Not necessarily.
I found in the consultation: those unfortunate feelings have nothing to do with similarity or complementarity.
They love each other very much at first, maybe because they see the similar parts of each other, or because they are different, they attract each other and have love and appreciate each other.
Then, after a period of sweet time, they put each other in their hearts. The more they looked at each other, the more they liked each other, they felt that they were so novel and in tune with themselves. But before long, the feelings will change, drop sharply, and even become enemies from love to hatred.
This change is divided into two steps.
The first step is to enter the "expectation disillusionment" period. You love him very much, you have a lot of expectations for him: I hope he is good to you, I hope he can understand what he wants without talking, and I hope he is gentle, considerate and warm-hearted.
You have a lot of expectations for him. Once some of his expectations are not met, you will be dissatisfied and your expectations will be shattered.
In this period, you are not satisfied with him. Your feelings and cognition of him will gradually deteriorate. You will lose your appreciation of him. You will more and more focus on his shortcomings and think that he is a "not good enough person".
Second, "power struggle" period. When your relationship is disillusioned and he doesn't meet your expectations and standards, you start to want to take some action.
The most common behavior is to ask and command him, express his dissatisfaction with him, and let him change. You will quarrel, cold war, attack each other, he feels you want to control him, you think he does not obey you, do not love you. You start fighting for power in a marriage, and you don't compromise with each other, or one of you compromises, but he's going to be miserable and emotionally unhealthy.
After these two periods, the relationship will break down. Because you no longer appreciate him, you start to attack each other, the relationship becomes hostile, he is no longer your lover, but your enemy, you are very disappointed in the feelings, two people can not go down.
However, if we can adjust our expectations, avoid using demands and commands, let ourselves express ourselves positively, or let our feelings return to love instead of power struggle, we can repair our feelings.