In the recent episode of Young Sheldon titled "Teen Angst and a Smart-Boy Walk of Shame," several storylines reached their breaking point. The episode followed the aftermath of the events in the previous episode, where Sheldon's online database failed, Mandy and Georgie had a baby, and George and Mary's extramarital desires were revealed.

The focus of the episode was on Missy, the perceptive but underestimated Cooper child.

In the midst of all the chaos, Missy felt neglected and betrayed. While everyone was preoccupied with the baby's birth, they forgot about Missy, leaving her to walk home from school with Billy Sparks. 

However, Missy's anger was not without reason. She was the only one who noticed that her mother didn't come home. Feeling confused and abandoned, Missy tried to ask her father about it, but he refused to talk.

This further deepened her sense of betrayal. In school, her emotions got the better of her, leading her to insult a teacher and ultimately get sent home.

The episode also hinted at Missy's rebellious phase, as she discovered her father's affair with Brenda. Realizing her father had lied to her and feeling neglected compared to Sheldon, Missy's world came crashing down. The episode ended with her packing a bag and stealing George's pickup truck, hinting at more trouble to come.

As Young Sheldon continues, it's clear that Missy's troubled journey is just beginning. Her parents' marital issues and her sense of betrayal will undoubtedly have a significant impact on her. With George's affair now out in the open, things are only going to get worse for Missy.