Originally Posted by Mulholland '49
If they were "friends" Magneto wouldn't have tried to sacrifice him in X2 or put him in a coma in X1.
That was pretty messed up. He just left him there with Jason at the end of X2 as well, using both to target and kill humans.
Looking at those examples I can see why some dont think hes quite to his more sinister villain mode in the other films. Its hard to picture FC Mags purposely doing those things to hurt/use Charles. Though I guess he did use him to get what he wanted with Shaw. I still think hes ready to do battle and fully chose his side against humans, but it is a bit hard to see him do something like the things in X1 an 2 to Prof X after the ending to FC.