Klaus and Caroline have been destined to be together that has some interesting side effects especially for Caroline. One day Klaus turned in to a wholth without any control of it he headed towards Caroline's but he didn't harm her he was there to either to just be there with her or to protect her. Tyler Cheated on Caroline with Haley and Haley and Klaus never slept together so the Mickelsons where still in town. Caroline never turned of he humanity. Klaus siblings have not met Caroline yet, Kol has seen her once in the bar. Caroline still attends Whitmore college but she took a few days off to pack up her mother's house since she died a few weeks ago. This is not the right timeline of the show, the originals never left and they met when Caroline was in college and not high school. Tyler is cruel and means to Caroline when she started to get along with the originals and so does Elena and Damn but Bonnie and Stefan respect her decision. So they staid friends with Carolone as Elena and Damen did there best to ignore Caroline or trying to convince her that the originals for some reason had compeled her.