What does she mean by saying these things?

This man has nothing to do with himself now except to be the father of his child!

He's just his ex-husband!

Dropping his eyelids, turning silently to leave, his chin suddenly tightened, he was gently pinched, and his eyes were forced to look directly at him.

"Why were you angry just now? Regret divorcing me?" His gaze slid down her forehead and swept across her straight and elegant nose, and her cherry lips returned to her melancholy eyes.

Yu Xiao turned his head to one side and tied his neck and answered, "No!"

"Is it?" He laughed and pulled back her chin....