Britney Spears mother heartbroken as 'bitter' daughter skipped birthday?

Britney Spears' mother reportedly felt betrayed when she failed to show up at the celebratory brunch of her mother’s 70th birthday.

According to the latest findings of RadarOnline.com, Lynne Spears was expecting to see her eldest daughter at her milestone birthday, but Britney is seemingly in no mood to let go of the past scars as she considers her mother and younger sister failed to save her from her prolonged “conservatorship.”

"Lynne tried to make light of the fact that Britney wasn't there to celebrate her milestone, but it's breaking her heart that it's come to this again,” shared a source.

The insider also addressed, "Lynne was so hopeful that things were finally getting better, but Britney has suddenly raised the shields again over some imagined slight."

Reportedly, the songbird swings from "hot and cold" when it comes to forgiving her family members.

Sharing her stance, the spy added, "There are times when it seems Britney is ready to move forward, at least with her mom.”

Before conclusion, the source stated, “Then she will suddenly do a complete 180 and become very closed off."