The Doctor's Time Stream

So Mr. Simeon goes into the Doctor's time stream in order to kill him and rewrite his history. (Mr. Simeon is a very old enemy of the Doctor's.) So, as the Doctor is collapsing before his friends, Clara has a realization that she was born to save the Doctor from his death. (Mr. Simeon.) So, Clara enters his time stream to discover the Mr. Simeon has burnt up and she can fix the Doctor's time stream. Had she not been in a link with River Song, the Doctor wouldn't have been able to officially say goodbye and (HUGE spoiler alert) KISS his wife. After River's image disappears, the Doctor goes in to save Clara. After all, she has been saving him for all these years, isn't it his turn to save her? Just before he leaves his time stream with Clara, she sees a man, who is the Doctor, who she has never seen before. This one person is the Doctor that told his name, therefore, the man is the Doctor's real name.