Rebirth or Eternal Life?

If you were given a chance to be reborn, would you be willing to live like this forever? What if this kind of immortality requires that you cannot change the fate of others? What if this immortality requires you to live only over and over again? What if this immortality required you to kill familiar people over and over again? What if this immortality requires you to endure being alone forever? In this case, are you still willing to have this eternal life?