Basically, Anakin always felt different from the rest of the order. He never quite adopted all of the Jedi teachings on restraint, calm, or acceptance that some things are simply beyond his control. Obi-wan was always trying to encourage him to fulfill those ideals. Palpatine on the other hand acted like the devil on Anakin’s shoulder.
He accepted Anakin’s relationship with Padme. He comforted him after Anakin murdered Dooku. He doted on him his whole life. He told Anakin that doing what he wanted was just not something he should be ashamed of, but it was right.