you were hanging out with jacob in his garage, he was fixing up his motorcycle, he sat a little closer than usual, and had a soft twinkle in his eyes. Which slowly faded once he saw the bite mark on your neck.

He looked concerned, and further inspected it by leaning in closer “who gave you this..?”he assumed that you were attacked by a vampire, or you were letting one feed on you. Either way, he was both jealous and concerned for you.