Y'all Sound the Same

So I was talking to a girl who recently added me on Facebook.
Her last name was Serbian, so I had started the conversation with Serbian hello, how are you, I'm fine, thanks, etc

Then she tells me...

Sanja says:
Super... Znaes makedonski??

Super... You know Macedonian??

I swear the Balkan Slavic languages are one and the same... even Svetlana agrees.
Sort of.

Светлана says:
no no
Светлана says:
but macedonian sounds like serbian dialect
Светлана says:
we call it South Serbia anyways