One day after Johnston took to Facebook to discuss the ongoing custody battle, claiming he had won and was "so happy to have my son in my life," the 25-year-old daughter of former Alaskan governor Sarah Palin shared her own cryptic post on Instagram.
While the snap did not include a caption, the quote's message was a clear dig.
"Always be careful of what you hear about a woman," it read. "Rumours either come from a man that can't have her or a woman who can't compete with her."
Oddly enough, Palin's attitude toward co-parenting seemed to be much different on Monday, when she shared a positive quote.
"The best security blanket a child can have is parents who respect each other," the picture stated.
Palin echoed that sentiment in another Instagram pic she posted later Wednesday evening.
These babies are my world and I will always be doing what is best for them. Every child deserves two loving parents, so I will continue to encourage that no matter what. I have never, and will never, keep them from having a positive relationship with their fathers. I did not "lose" any custody case - my son has always spent most of his time with me and he will continue to do so, he is happy, healthy, and knows both of his parents love him.. ❤️ Matthew 5:11
As ET previously reported, Johnston -- who was engaged to Palin twice before splitting for good in 2010 -- revealed on social media that he was happy to "put all of this back in forth in the courts."
"It might have taken me 7 years and cost me around $100,000 in lawyer fees, spread out among 3 different lawyers, as well as a lot of patience, but it was all worth it," his post continued. "I'm happy now to be successfully co-parenting."
"Despite what some have heard I've always been there for him, and I go to almost every school event that I can and spend all of my free time with my kids," he added. "Right now life is really looking up for our family."
To hear more, watch the video below.