Jesus did not say, peter, such and such.So are you saying that Jesus was calling Peter a fallen angel, or not, at Matthew 16:23 and Mark 8:33?
It is up for interpretation whether Jesus called Peter, satan , at all.
If... you believe that Jesus did call Peter satan it is obvious, that He did not mean, the fallen angel.
Note, 'god' is used for false gods, and is a name of God, at the same time. This is contextual
• I personally do not believe that Jesus actually called Peter satan. I believe this was a phrase that meant, and He was addressing everyone, that what He was doing, was of God, and essentially authoritatively stating that He was not going to change his mind, on this.