On one hand it's sad to see Annie be down after being told such things, on the other Aria is not wrong and if Annie really wants to become a noblewoman, she is going to have to accept that there won't be much place for love in her life. However, Aria better hope Annie doesn't become too pragmatic as others, like Isis, could make use of it.
Still, it's good to see Aria act as a villainess again and make evil faces. She has been way too mild lately.