@laurasking submitted:

Armand is the best at masking his presence/thoughts because he had centuries of practice hiding his heart from Santino.

Armand may be one of the best of the coven at his mind gifts, true. Lestat is very intimidated by Armand’s abilities ;D

I had to think about this a lot, maybe I’m misreading your comment. Hiding his heart from Santino (& Co.) for centuries? I’m not sure if he could do that. 

I would need to reread TVA. Just because Armand may not have believed in that religion, he may have eventually had feelings for his “teachers” there, and shared his heart to some extent. Why else be so passionate about trying to get rid of Lestat in TVL, so the Children of Darkness could go on with business as usual? If Armand was really that miserable, he could have killed himself, but he didn’t. When he became a coven master himself, he would have had even more freedom to do so if he really wanted to.