My wife has a resting sad/concerned face, and for the first few years we were together I was constantly asking her what was wrong, how I could help. She would say, “This is just how I look!” and get pissed at me for it.
Then we had a daughter, and my wife started asking her, “What’s wrong? How can I help?” And my daughter would say, “This is just how I look!”
And I said, “That’s how you look, dear!” It was an OMG moment for all of us.