You can rotate your view inside the viewport without affecting your drawing. You can use the MVSETUP command for this.
Enter an option [Align/Create/Scale viewports/Options/Title block/Undo]: A
Enter an option [Angled/Horizontal/Vertical alignment/Rotate view/Undo]: R
Specify basepoint in the viewport with the view to be rotated: (Click to set a point inside your viewport to rotate around)
Specify angle from basepoint: (Type in the amount of rotation)