US singer Britney Spears arrives for the premiere of Sony Pictures’ “Once Upon a Time… in Hollywood” at the TCL Chinese Theatre in Hollywood, California on July 22, 2019. (Photo by VALERIE MACON / AFP) (Photo by VALERIE MACON/AFP via Getty Images)

Throughout the Free Britney movement, Britney Spears’ father, Jamie, has been at the centre, thought of by many as an absent parent who took advantage of his successful daughter during a mental health crisis, continuing to exploit her for 13 years. However, in a now-deleted Instagram post, the popstar took aim at an unexpected source: her mother, Lynne. 

In the caption of an image reading, “The most dangerous animal in the world is a silent smiling woman,” Spears began by writing, “The moment I SMILE 😁 and I realize I haven’t in a very long time !!!! My mom gets so CONCERNED and says ‘You’re acting weird … what’s wrong with you ???’ I say ‘Hi, my name is Britney Spears … nice to finally meet you !!!’”

Per Page Six, Spears went on, “my dad [Jamie] may have started the conservatorship 13 years ago … but what people don’t know is that my mom is the one who gave him the idea.” 

Lynne Spears & Britney Spears (Photo by Jeff Kravitz/FilmMagic)

“I will never get those years back,” Spears continued. “She secretly ruined my life … and yes I will call her and Lou Taylor [Spears’ former manager] out on it … so take your whole ‘I have NO IDEA what’s going on’ attitude and go f–k yourself!!!!”

Addressing her mother, the pop star finished, “You know exactly what you did … my dad is not smart enough to ever think of a conservatorship.”

Lynne Spears has not yet addressed the accusations publicly. The post comes months after Spears blasted her younger sister, Jamie Lynn, for voicing her support of the termination of the conservatorship despite “never showing up” for her. A few days ago, on November 1st, Spears’ father, Jamie, requested the immediate termination of the conservatorship.

In new court documents obtained by PEOPLE, Spears’ attorney Alex Weingarten wrote that he believes “Britney’s recent testimony and requests to take personal control of her estate and affairs have made clear that continuing the Conservatorship is contrary to her desires.”

Therefore, “Jamie sees no reason why the Conservatorship should continue for any amount of time and asserts he has no interest in the Conservatorship continuing.” Jamie Spears stepped down from his role in his daughter’s conservatorship two months ago, something Britney’s lawyer says was  “motivated by a desire to bolster his reputation or to avoid his deposition,” rather than worry for his daughter’s wellbeing.