Britney, I've done my absolute best to support your goals and aspirations throughout your entire life!
The "Hold Me Closer" singer, 40, and Lynne, 67, can be seen laughing together in an old black-and-white photograph that was posted on Instagram on Sunday.
"And I've done everything I can to get you out of trouble, too! I have never turned my back on you and I never will!
In addition, Lynne said, "Your rejections to the numerous times I have flown out and called make me feel hopeless! Britney is the one who has turned her back on me. I have made every effort.
"I love you so much, but this chat is for you and me exclusively, eye to eye, in private," she cynically wrote as she ended the public post. ❤️🙏.”
A few hours prior, Britney criticised her family for the alleged mistreatment she endured during her 13-year conservatorship,
but she made the distinction that she was "angrier" with her mother than with her father and previous conservator, Jamie Spears.