There was more than one reason that Dean ddin't want to get himself involved in those whole 'group' business. For one, like he'd mentioned to her, that just wasn't the way that they operated. The second and more important reason was that he didn't need to make any ties at this point. Whether it was friends or more than that, he didn't need any kind of relationship with anyone, not when he was going to be gone in a month. It wouldn't be fair to anyone. The only plus that he ssaw was the fact that it meant that someone would be looking after Sammy.
"A deal it is. 'Cause without the lunch, I gotta say, probably wouldn't show up. Unless you were there of course."