[s9e14] The Meemaw Materialization -

According to the Big Bang Theory Wiki , this episode is a pivotal moment for "Shamy" as it officially cements their reconciliation and gains them the "matriarchal" seal of approval. imdb.com/news/ni63589795/">Young Sheldon ?

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 [S9E14] The Meemaw Materialization

deal with the realization that their lives are about to change significantly, setting the stage for future family developments. According to the Big Bang Theory Wiki ,

meets a girl named Claire at the comic book store and starts questioning his relationship with Emily. Meemaw is uncharacteristically cold and critical toward her,

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

In a lighter side story, Raj and Howard argue over a secret project.