Thanks for the chapter!
Getting his party to switch their faith, tricking them, and only helping out for his own personal, selfish reasons rather than concern for others and he's surprised his alignment drops? Seems he's being judged as doing his own personal justice depending on the situation rather than a strict moral code or only selfish gains exploiting the weak. Basically he does both good and evil, with a bias for his own personal reasons, but not enough to be considered mostly good or evil but a somewhat balanced mix of the two.