Third Time’s the Charm
Five-year-old kids can hardly communicate, even though they are more than able to string a few words together. So, when this person’s daughter told them that she said, “You’re the best mommy I ever had,” of course, they had to correct her. She meant “only,” right?
Apparently, she chose her words carefully when speaking to the OP. Back when nobody knows when, the daughter was raised by two other mommies. What makes the OP better than the other two, we don’t know, and we’re not sure we want to know. Kids, right? They sure say pretty crazy, creepy things!