Claire Aquos I'm pretty sure he noticed when she said that he's royalty and a commoner was lucky to have him. That's something EQ would say, not reformed Regina.
I love that when the evil queen who was pretending 2 be Regina tells Henry to not slouch cuz posture is self-respect & when Henry heard what regina said he knew that it was really the evil queen posing as his mother cuz Henry knows the only person who has said that to him is the evil queen