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If TMZ is to be believed, Selena Gomez really DID learn something in rehab. Apparently she’s not falling forJustin Bieber’s tricks. Instead, she’s shutting the door on a future relationship.

In case you missed it, Justin posted a photo Selena at an Oscars party with the caption, “Most elegant princess in the world.” This time, instead of falling for it, sources say that she laughed out loud and called the stunt, “stupid and childish.” Stay tuned...