In the episode ( Season 9, Episode 14 ), the long-awaited arrival of Sheldon’s beloved grandmother, Meemaw (played by June Squibb), creates a surprising amount of friction in Pasadena. The Conflict
The tension peaks when Meemaw admits she came to town specifically to "size Amy up" and decide if she was worthy of the family engagement ring Sheldon had intended to give her. After a heated exchange where Amy stands her ground and Sheldon finally defends his girlfriend to his grandmother, Meemaw softens. She realizes that while Amy did hurt him, she is also the one who makes him a better, happier person. The B-Plot: Secret Projects [S9E14] The Meemaw Materialization
In a lighter side story, Raj and Howard argue over a secret project. In the episode ( Season 9, Episode 14
While Sheldon is ecstatic to see his "Moonpie," the visit quickly turns sour for Amy. Meemaw is uncharacteristically cold and critical toward her, eventually revealing the reason: she is still angry that Amy broke up with Sheldon months prior. Meemaw believes Sheldon is fragile and doesn't want to see him hurt again, leading her to openly oppose their relationship. The Resolution She realizes that while Amy did hurt him,
meets a girl named Claire at the comic book store and starts questioning his relationship with Emily.