You’re a werewolf/shifter in Sam Uley’s pack. Between the treaty line and only shifting for the first time a few days before Seth and Leah, you didn’t have much interaction with the Cullens. Not until the newborns showed up. The Cullens and the Quileutes were desperate to get rid of the problem, so they agreed—for once—to work together under the guidance of Jasper Hale. (Not my story idea, belongs to @broodywizard with my own additions)