Most relationships don’t fall apart overnight. They erode gradually, often in ways neither person notices at first. The real damage doesn’t always come from incessant fighting, cheating, or even falling out of love. More often, it comes from a silent, menacing killer that poisons the connection between two people. And it doesn't matter whether the pair have been together two months, two years, or even two decades. This scourge has the potential to destroy partnerships weak and strong. So, what is it? It’s the expectation that your partner should act, feel, and think the way you do. At first glance, it seems harmless — even logical. If something makes sense to you, shouldn’t it make sense to them as well? If you would react a particular way, isn’t it fair to expect they would too? But that mindset is a trap. It sets up an impossible standard where your partner can never win —because they’re not you. This expectation surfaces in subtle ways: You get frustrate...