On this week's episode of Supernatural…
It's been a week and a half since Sam left Dean. After hearing about a couple of psychics being murdered, Dean heads to Lily Dale, NY and bumps into Sam.
The two agree to work together but not talk about their problems.
They discover that a real psychic, upset because of his financial standings, has bound a ghost and is ordering it to kill off his competition.
Dean stays behind to protect its next target while Sam confronts the psychic. He shoots him and then burns the ghosts bones.
Sam and Dean reconcile, but he doesn't want Dean to lie to him about his own problems. Dean agrees.