Newlyweds tend to exaggerate the dignity of their second half, not to notice the negative traits of character and believe that they have everything for sure for real, not that of some. In psychology, this phenomenon is called pink glasses. It is interesting that for long-term relationships, pink glasses are much more useful than a sober look at the chosen one.
The effect of "positive illusions" can be in young and in older couples, both at the beginning of the relationship, and ten years later. This effect is contagious. If one of the spouses does not see the flaws in the other, then the second, regardless of how soberly he evaluates his partner, feels happier.
The mechanisms of this phenomenon are still unclear. Perhaps living with a person who looks at you as a deity, you yourself strive to correspond to the image created by him. Or maybe you start thinking about yourself the same way he does, which as a result changes you for the better. The reward for your efforts will be a long family life full of positive emotions and happy relationships.