No. A manager is obligated to adhere to the terms of contract drawn between him and his client. You cannot impose demands on him outside that contract.
In his defence, he should have stated how the new managers are failing Wendy, as a manager it was his obligation to protect Wendy's private life and offer any assistance if he could in secrecy. This man has failed all men in this group. The girls privacy has been defiled forever intentionally or unintentionally.
What he did and what a doctors does is no different, they handle client very private info and are bound by law not to share to third parties unless otherwise demanded.
What was so hard in obtaining financial transcripts either from Bank or Mpesa? Money trail is what would have saved his character unless his work ethic/sexuality was questionable and a right to reply was asked. Quoting and thanking chipukeezy ni ufala tupu, he won't help him for his misadventures.