Final answer:
Seamus is not mentioned in the provided reference, which focuses on Marcus Schouler's behavior at Frenna's, therefore, no direct answer can be given about Seamus's attitude without additional context.
Step-by-step explanation:
The character Seamus does not appear in the reference provided, hence there's no direct answer regarding Seamus's attitude towards Frank and Patricia. The provided text discusses Marcus Schouler and his activities at Frenna's, emphasizing Marcus's tendency to engage in loud and animated discussions.
If Seamus is meant to be a character from the same text or story, it's important to look deeper into the narrative to understand his relationship with Frank and Patricia. For a precise answer, additional context from the student would be needed regarding Seamus, his role, and his interactions with the other characters.