Committing your life to another person is a big step. How can you feel comfortable taking that risk, committing yourself to a partner you know is flawed? To overcome those insecurities, it's sometimes best to hold some “positive illusions” about your partner, even if they’re not accurate.
Past research has shown that couples are more satisfied when both members of the couple view each another in an overly positive manner.1 In a survey, they asked couples to evaluate themselves and their partners on a series of personality traits and found that the most satisfied people rated their partners more positively than the partners rated themselves. The researchers argued that these “positive illusions” allow us to deal with the inevitable doubts and conflicts that surface in a relationship, by building up a store of good will.
That doesn’t mean that love is blind. These happy couples are not wearing blinders, but rather rose-colored glasses. They notice their partners’ flaws, but find ways to minimize the importance of those flaws and to accentuate their partners' assets.