You must have cut and must have skipped cheryl in eterna forest. go to eterna forest and you will see cheryl go through the forest but before you get to the end you will see 3 cut trees cut one and go up you will see a house go in its the old chauetu then go right out and cheryl will disappear go in the grass and you will find 2 pokemon ALL THE TIME. to get rid of her go backto the beginig and leave the forest. warining cant use fly surf rockclimb or water fall cant see cheryl either.