Andrew was unaware of the thoughts that the two girls were feeling. For him it was just a natural response, he didn't even flinch when he called Helena his wife, although he had told Carolina a while ago that only time would tell if she would be his wife.
Fluffy just saw from inside Andrew everything that happened. It wasn't strange to him that his master reacted like this because Fluffy knew his master's feelings even better than his master knew himself.
Andrew limited himself to explaining what the models had to do during the fashion show. It was a class that lasted for about an hour and after he finished explaining, Helena took over from him and supervised the models.
Due to Dastan's earlier comment, none of the members of the Heavenly Palace entered into a conversation with him, they just explained what should be done and Dastan having no other choice just watched and learned without asking any questions.