To add to the initial topic, Anakin may have taken the denial of the rank of Master as an insult, but it was simply the principle of the thing to do. The matter of fact was Anakin didn't deserve to be a Jedi Master. He was arrogant, and he went against the Code in many way. Remember that he was appointed, not added by the Council itself. Simple appointment of an individual doesen't mean they deserve an equal title as the other Jedi. The other Jedi on the Council were loyal to the Jedi Code all of their lives without failing or corruption. Anakin was simply a pawn of Palpatine, which is another reason. The Jedi didn't trust Anakin because of this.