When Susan returned, Seamus had to press his lips together to keep him from asking 'Eddie?' He wasn't about to share Susan's personal life with Rose unless Susan indicated it was okay. Still, he couldn't help but raise his eyebrows a little at Dean. Because yes, Eddie was hot (gods, so hot) but... weren't he and Susan friends?
"I know everyone," Seamus assured both women with a wink. "Come sit down, Rose. Dean and I are making ourselves at home." Also, Seamus had been on his feet all day and they were starting to hurt.
He glanced up at Rose, trying to decide if he knew her well enough to tease. Probably not, but hair of the dog would certainly explain why Susan had been spilling details of her love life at them so casually. "How was your day? Any new adventures to tell us?"