What kind of relationship does Neymar have with his son's mother?

Yes, Neymar has a son, if some of you didn't know it yet. The Barcelona player found out that he was going to be a father during his time at Santos FC and the mother was just 17 years old.
Carolina Dantas is now 23 years old and decided to give an interview which became very famous, since no one knew about her and Neymar's relationship.
It seems like both have a good relationship and the Barcelona player tries always to spend time with his son and take care of him.
Davi Lucca's mother said: "I love my son and I don't want to see him ever sad. Neymar and me are trying to be friends, to talk and make Lucca's life easier".
She said when she found out she got pregnant both of them cried but they decided to have the baby with their families' help.
Boa noite@davilucca99 pic.twitter.com/Y0HIF9AMkt
— Neymar Jr (@neymarjr) 30 de septiembre de 2016