Does the questioner have to make up the days of Ramadan that she broke her fast, even though she was fasting without prayer, and her fasting is invalid, and a repentant person is not obligated to fast?

The ruling on the fasting of one who abandons prayer is based on the scholarly disagreement regarding their disbelief (kufr). According to the view that considers them a disbeliever, their fasting is invalid, and they are not required to make up (qada') for it upon repentance, as Allah Almighty says: "Say to those who disbelieved, if they cease, what has passed will be forgiven them." However, according to the view that they are not considered a disbeliever, which is the favored opinion (mufta bihi), their fasting is valid, and they must make up the days they missed in Ramadan (definition). They must also make up the prayers they abandoned.