ET spoke with Christina in August, when she opened up about co-parenting with Tarek after their split last year.
"Things have gotten significantly easier since January. You know, the initial shock of it hitting the media was extremely stressful. [It was hard] having to be so public, but I feel like now everything's calmed down and everything's on the up and up," she said.
"I think that's a good thing for other people, to put your differences aside and to know that your kids are the most important, and you know that's what matters," she added.
See more in the video below.