We have all seen it happen. You pull into the driveway of your partner's childhood home for the holidays. In the car, you were talking to your spouse—the competent, adult, equal partner you love. You were joking, making plans, and feeling connected. But the moment you...

It starts innocently enough. Your partner walks through the door after a long day. Their shoulders are slumped, they let out a heavy sigh, and they drop their keys on the counter with a little too much force. They don't make eye contact immediately. They just seem......