They put a lot of focus on the scene where her kids are talking about their daddy and how he has her name tattooed across his stomach. Normally, you don't mention completely random things like that in a story unless it's foreshadowing of some type.
My initial guess: He's going to be a werewolf. Which is why the foreshadowing is taking place with Sam. He's going to end up having to protect the kids or something.
