I'm quite willing to take you at your word, but my guess is that academia had nothing to do with your ex being immature.
They even refrain from tea and coffee. He's usually trying to catch up on sleep working on a presentation, patient notes, etc I know communication is key, but it's helpful to know that others are going through the same experience.
My fiance and I are both becoming doctors, but he is becoming an Orthopedic surgeon and I am becoming a Psychiatrist.
Hopefully she could realize if she was born into one of these cults that also distrust apostates she probably wouldn't see through them either.