Final answer:
The provided excerpts do not contain information about Bonnie or the inning during which she left her seat at a Mariners game, making it impossible to answer the student's question based on these references.
Step-by-step explanation:
The Mariners game referred to in the question suggests the setting is related to a baseball event. However, the context provided in the given excerpts doesn't contain any concrete information about Bonnie leaving her seat during a Mariners game. The excerpts are seemingly unrelated dialogues; the first from a theatrical setting with Glenn Close and the second is a snippet of a conversation about a pitcher. There is no mention or implication of an inning or Bonnie's actions related to a Mariners game in the provided reference material. Therefore, it is not possible to determine during which inning Bonnie left her seat based on the information given. This indicates that the question may be based on details external to the excerpts provided.