“You two bicker like an old married couple,” is both an observation that people make about friends who regularly argue, and a sort of backhanded compliment. After all, you can’t really argue that way without knowing each other for a very long time and having a certain understanding between the two of you, right? Well, actually yes, according to a new series of studies by psychologists. After psychology groups performed tests, it became clear that many couples who argue may have a healthier relationship than those who don’t. Do you and your partner argue a lot? Let us know in the comments section below.