Gaara love.

When you two were ninjas, you became a couple and over time you got married. But when you married, Gaara made it very clear that he didn't want children, but you did adopt one, a very young boy of 5 years old, named Shinki.
Shinki saw you as his biological mother, that's why he was more attached to you. Well, all the boys and girls in the village loved and admired you.
Today Gaara had a day off and they decided to take Shinki to the park. When they arrived everything was fine since Naruto had arrived in the Sand Village and well, Gaara and Naruto stayed talking while you talked with Hinata, Naruto's wife. Now Shinki was playing with Naruto's children (Himawari and Boruto).
But as expected, a group of children came to hug you. You just laughed and then told them to go play, which the children did, and Gaara kept looking at you.
Naruto: I didn't know your wife was so good with children whispering to Gaara
Gaara: Yes, I know.

Then they go home and Gaara tries to tell you that he wants to have a biological child with you.