Here's the Gareth/Bob scene. Listening to Gareth, I'm now all in on them having some sort of prior relationship with Bob.
...Bob starts to come to. He is groggy and disoriented. His head hurts from the blow he took the night before. As he turns to focus his vision he sees that it is still dark...and that he is not alone...
Anthony Hopkins as "Gareth" (in creepy Lecter voice)
Gareth: "Hello Bob. So glad you could join us. I do apologize for the bump on your head, but we really were in a bit of a rush to get out of there. I'm sure you understand. We wouldn't want Riiiiiiiick to know we were out here, would we? He might try to burn us out of our little camp here as he did back in Terminus. That was rather rude of him, wouldn't you say? After all, he was our guest...as you are now, I'm afraid."
Bob: "Look, We can fix this. I can..."
Gareth: "ShaShhhShhhh. Save your strength now, Bob. You really had a rough night, and we have a long time to discuss how you can best help us. Well, a couple of days, anyway. We'll pay Riiiiiick a visit soon enough. Now then, you must be hungry. You see, we were hungry too, afterall we lost our home and supplies. Such a pity, you know, after all the work we put into building our...hum-ble diiiggs". (in a snarky, groovy tone). Mmmmm, smell that Bar-be-Que! It's too bad we don't have Hickory sauce. The local wood flavoring will simply have to do I'm afraid. You like wood flavoring, don't you Bob?"
Bob: "Please, you have to..."
Gareth: "Listen to that, Bob. The crackling timber. The sizzle sizzle of a good meal cooking. Reminds us of the old days, except I've found that farm raised beef was a bit overrated. I preferred the wild game. The thrill of the hunt. Staring into the eyes of my prey and wondering what they were thinking. Of course, we can never know what a simple cow is thinking at the moment of his slaughter, can we Bob? What he thinks as he sees the blade...? (pulls knife, pauses and walks out of Bob's view to cut a piece of meat).
(return to Bob with two slices of meat in hand) "Tell me, Bob, what are you thinking right now? (takes a bite of the meat) Mmmm, that's gooood! Might be better with a good marinade, but the natural flavor is really quite good. Here, I cut a piece for you. Have a taste and tell me what you think.
Bob: (turns head away, can almost see the cooking fire out of the corner of his eye)
Gareth: That's disappointing. You're missing out. Someone took reeeel good care of this one. Not gamey at all. Tell me Bob, were you married before all this? Did you have a...girl-friend? (snarky) Was she a good cook? I bet she was. My pallette never lies.
(Bob turns to look at Gareth with a look of horrid realization)
Gareth: (with blank stare and pouty smile) Now, Bob, I want you to know that bringing you here was nothing personal. I always liked you. In fact, I think I like you more now than I did before.
(Bob, finally regaining his senses looks down to see his lower left leg gone from just above the knee)
Gareth: You really should try a slab, Bob. Most people never get this opportunity. And the taste is much better than you might think. It certainly is better than I thought. I only wish we could share this dish together with some (WAIT FOR IT) fava beans and a nice Chianti. That's alright, Bob. I'll understand if tonight doesn't work for you. Perhaps if you're still...available...when we find Rick, you might decide to join me then. I'd love to stay and chat more, but this is a dinner party, and I have other friends I must mingle with. We can talk more in the morning. Bacon for breakfast!