That means "Ah, so you are going to do the same thing as other people before you did!"
Literally, "И вы туда же [хотите пойти]?"
In the context the person who said this phrase was angry to hear the compliments addressed to that "Irochka" because someone else had already said them before. Or maybe (s)he was not angry and just noted the fact that he was not the first one to find that Irochka beautiful
By the way, sperk, I would be happy if you provide English idioms for the phrases in Russian you ask about (I mean, after you have learned their meaning from our answers).