Student or Learner
Don't you ever call me as your friend.
Don't call me as your friend.
Both the above statements are widely used for the same intended meaning. But what difference it would create preferring one to the another.
The "as" should be dropped:
Don't you ever call me your friend.
Don't call me your friend.
Both are very direct. The extra "you ever" makes it more personal (you!) and permanent (ever!), and thus doubly stronger. "Don't you ever..." sounds angry. Or, if spoken lightly, it teases.