Jacob wanted to talk to Edward so you both go to the forest. They got into a heated argument, and Edward told you to go home.

“No you don’t make choices for her!” Jacob grabs your wrist bringing you away from Edward

Edward swiftly pushed him back roughly and since Edward got super strength, he basically flings.

Oh and Jacob didn’t like that and the impact of him being thrown made him turn into his HUGE ASS wolf form. And he gets ready to attack Edward before you scream “STOP! This isn’t helping anything!”

Jacob’s wolf stops and comes near you he wanted to be pet and be near you.