Is a husband's reconciliation with his menstruating wife considered valid and does it remove doubt regarding the occurrence of the first divorce, bearing in mind that both divorces occurred within the same waiting period ('iddah), and the reconciliation took place after her period ended but before her ritual bath (ghusl) from menstruation? And if repeated divorce during the 'iddah is considered a single divorce, based on the madhhab of Ibn Taymiyyah, what should be done in this situation?

The madhhab of Sheikh al-Islam Ibn Taymiyyah - may Allah have mercy on him - is that the divorce of a menstruating woman does not occur, and likewise, the divorce of an enraged man does not occur if his anger is severe, because it compelled him and carried him to it, so he is like one who is coerced. Accordingly, the divorce did not occur in the two aforementioned cases, as long as you both follow Sheikh al-Islam Ibn Taymiyyah. The determination of whether the anger was severe or not rests with the husband. And dismiss these whispers from your mind, for turning away from them is the best cure for them.