No, Jacob does not know she knows the cullens secret...truth be told, he doesn't know it himself, all he knows is that the legends are not true when they are.
No, but his dad does know
Jacob Black
Yes.
ya when Bella uses Jacob to get information about the cullens.
In Breaking Dawn, Irina betrays the Cullens by telling the Volturi about Renesmee, Edward and Bella's half-vampire daughter. She does this because in New Moon, Irina's mate, Laurent was going to kill Bella. Jacob and his werewolf pack intervene and kill Laurent first. Irina is still upset about this in Breaking Dawn, so she betrays them.
He is good because he fights along side the CUllens in order to save Bella.
Twilight begins by Bella moving to her Dad's house. Then she meets Jacob Black Then she goes to school and meets Edward and the other Cullens.
Well, there are the other Cullens, Jacob Black, Bella's friends, Charlie, any one you can think of.
Tells Bella about the wolves and the cold ones (vampires) and helps her realise that the cullens are vampires and is her friend
Jacob Black is Bella's best friend. He is a werewolf. In Twilight, Jacob plays the minor role of a forgotten childhood friend of Bella's, and he develops a crush on her. In an attempt to learn more about Cullens, Bella flirts with Jacob, and he tells her tribe legends about "the cold ones", or vampires. After Edward leaves Bella in New Moon, she spends much of her time with Jacob. Though she only considers him a friend, Jacob falls in love with Bella. Although he spends most of his time in eclipse trying to win Bella, in Breaking Dawn he imprints- an involuntary process in which a werewolf finds their soul mate- on Bella and Edward's daughter.
umm. i dont remember exactly what chapter it was but if this helps it was when Jacob kissed Bella when she didn't want him to kiss her so she punched him in the face and broke her hand doing it
No, Bella did not flirt with Jacob to get him to tell her about the legends of the Cullens. Jacob willingly shared information about his tribe's legends as part of their friendship and his own interest in her.