I think a lot of people are overlooking the internal issue of Demon Border Patrol administration for Henri favoring Iruma, which I don't discard Henri having a soft spot for Iruma having weight, but I think to Henri the fact that Narnia sent the Fang Platoon without consulting with him, with the excuse of Narnia being a 13 Crown now too, could be a challenge of power and an inner competition in the DBP over both the president and vice-president being 13 Crowns, Narnia now acting as an equal in authority to Henri despite within the DBP still being one echelon bellow him within the organization.