Pink is always candid about what it takes to make her marriage to Carey Hart work. And mostly, she said, it involves a whole lot of therapy.

The singer spoke about her relationship with the motocross rider in an Instagram post on Monday, accompanied by a photo a friend snapped showing the couple in a happy embrace. (See it below.)

He and I have been at this a long time, and it is our relentless and stubborn idealism that keeps us together, Pink wrote of her husband, who she wed in 2006.