Did not see her again

Which are correct:

1-I did not see her for three years. Then I began seeing her until we fell out. After that, I did not see her again, this time for six years.

2-I did not see her for three years. Then I began seeing her until we fell out. After that, I did not see her again, for six years.

3-I did not see her for three years. Then I began seeing her until we fell out. After that, I did not see her again for six years.

Presumably, after the six-year period I start seeing her again.

I don't see her for three years. I begin seeing her until we fall out. I don't see her for another six years. Then we begin seeing each other again.

Gratefully,
Navi.