I believe that if she sinned again, and asked for forgiveness, she would have been forgiven. when Peter asked Jesus about 7 fold forgiveness , Jesus answered him 70 x 7.
If a person is truly repentant they won't do that wrong again. Another maybe, but rarely the same wrong.
for instance, If you break into my house and steal money, and I catch you. If you said you were sorry and would never break into my house again, that is called repentance. Can you argue with that?
But what are "Works worthy of repentance"? Wouldn't that be you never breaking into my house again?
What if you did break in again and steal money and I catch you? Would I forgive you again? If you said you were sorry, and wouldn't do it again, then yes, I would forgive you again for that sin.
But what if you did it again the very next week? How long would it take for me to learn you are a liar, and that you really didn't repent, you just lied to me to deceive me into dropping my guard. Am I to forgive you this time?
This is called "Practicing iniquity" and there isn't any forgiveness for this tradition according to the Bible.
Luke 13:
5 I tell you, Nay: but, except ye repent,
ye shall all likewise perish.
As Paul taught;
19 Whereupon, O king Agrippa,
I was not disobedient unto the heavenly vision:
20 But shewed first unto them of Damascus, and at Jerusalem, and throughout all the coasts of Judaea,
and then to the Gentiles, that they (ALL)
should repent and
turn to God,
and do works meet for repentance.
A child learns obedience the same way the Bible says Jesus learned obedience, "through the things they suffered". A child has to learn a lot of stuff to be an adult. They over come one fault "Peeing in their clothes", and move on to another, "Throwing tantrums". Paul said this life is a "RACE". A race has a start and a finish.
The gentiles in Acts 15 were "learning obedience" and do all God's People. That is why Peter and James kept them away from the Religious Jews who were "practicing iniquity" and towards the Word's of Moses which were given him by the Word which became Flesh.
This example of "Growing in the Grace and the knowledge of the Lord" is evident throughout the entire Bible. IMO.