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It's almost 10pm on a Sunday night when Melissa*'s phone buzzes. It's a message from her ex-partner, David*.

"Emily* says you make her brush her teeth twice a day. That's too much. Once is fine," he wrote. Their daughter, Emily, is about to head back to her dad's house for the week , and Melissa knows what's coming next: another seven days of different rules, clashing routines, and a child caught in the middle .

"This is my life," Melissa said. "I'm raising my daughter with someone who does everything differently from me."

Two houses, two rule books.

Since separating two year

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