On Teen Wolf Season 3 Episode 20 Stiles faced his bleakest days yet as he entered Eichen House, the same facility where Barrow was committed, to try to save his friends from what he might become at the hands of the Nogitsune.
While inside he found a helpful ally in Ms. Morrell and a potential love interest in Peter Hale's were-coyote daughter Malia. She helped him and hurt him as he's the reason the Nogitsune found his way back into Stiles mind.
Sweetheart, let me tell you something no teenager ever believes, but I guarantee you is the absolute truth. You fall in love more than once. It will happen again. It will be just as amazing and extraordinary as the first time and maybe just as painful. But it'll happen again. I promise. But until then, be your own anchor.