when does stefan stop drinking human blood in season 1
Stefan Salvatore Stefan and Elena begin a relationship and he revealed to her that he is a vampire. However, Damon returns to Mystic Falls, too, and also falls in love with Elena. Further on in the series, Damon and Stefan start to bond as brothers again and it becomes apparent that they do love each other. Because of his addiction to human blood, Stefan only drank animal blood in the beginning of the series, which made him weaker than other vampires. In season two, Stefan starts to take small amounts of Elena's blood each day to mitigate its effect on him and to increase his strength. When Katherine returns it is discovered that she had always loved Stefan and not Damon; however, Stefan is in love with Elena and not interested in Katherine. Stefan starts to build a friendship with Caroline Forbes after she is turned into a vampire. After Klaus gives Stefan his blood to save Damon from a werewolf bite, he turns Stefan into a Ripper again.