You're right. It appears as if she's trying to punish you. I see no other reason for her reacting this way. I mean, what was the point of telling you how critical he was and then won't give you details or let you see him? She knows how you feel about him. It does seem she used this as vehicle to pay back some hurt.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!