Much of Iron Man 3's plot revolved around Tony Stark's concerns ... In the end, he managed to overcome those fears, defeating Aldrich Killian with the help of Pepper Potts and his 40+ Iron Man ...
While a version of The Mandarin did appear in Iron Man 3, it was merely a decoy for the true villain, Aldrich Killian. At first, it did not appear that there was a "real" Mandarin in the Marvel ...