to make no difference

“Carrie Louise was always so anxious to make no difference between the adopted child and her own child that I think she rather tended to overindulge Pippa and pass over Mildred.”

Fictionaut: Twin Moons

“I’d like to say what happened that first afternoon with Grand-père Alphonse, the pity I had heard in my mother’s voice even as she held me in her arms, came to make no difference in our relationship.”

Simon & Schuster: Belle