Care
Dadan didn't care for the devil's brat that Garp forced on her. She was a fearsome bandit leader and not a babysitter for the worst criminal's child. So, why should she care for the child?
She also did not care for the loudmouth brat that was Garp's grandson, who the vice-admiral one day dumped on her. – Just like the devil's brat.
Or the cheeky rascal that the devil's brat and the loudmouth brat dragged in one day.
Dadan did not risk her life in a giant fire for two brats.
She did not build an empty grave on a cliff overlooking the ocean for a cheeky rascal.
Or beat up a vice-admiral after a war at Marineford while her heart did not bleed for the loudmouth brat after the devil's brat's death.
Because Dadan didn't care about the three brats, that turned her world upside-down. Why should she care?