Yay for third person. Aisu loves third person, she does it all the time. (Also, I prefer Marde Guille. Immigrant's bias.)
I doubt Zeref does care. You see how many Tartaros guys died already and he hasn't done anything? If he spent the time to create E.N.D. he should, by all logic, see how his demons are doing, yet he has done absolutely nothing in that department.