The crux of any relationship is communication, Cohen says. Sure, you typically hear reasons for divorce like money disagreements, commitment issues and the other things in this list, but Levine reminds us that these problems are also rooted in a breakdown of communication. If you can’t talk your ish out in a way both partners understand, all that’s left is an unproductive argument and growing resentment. “Your behavior might not match what your partner needs,” Cohen says. That’s why divorce often waits at the bottom of that slippery slope.