The words "genetic testing" carry a weight that may not be entirely deserved, but it's there regardless. And no, she didn't read the fine print. Most people don't. This doesn't make her a "fucking idiot" as you unnecessarily described her.
A lot of people take a lot of pride and interest in their culture. How is that "fucking creepy"? As it happens, there is a lot of Middle Eastern blood in Sicilians, so she may have been right and her grandmother may have been right.
And why do you think that the author is asking people to feel sorry for her? She's just relating something that she learned the hard way that she regrets.
Ever been to an Italian restaurant? Was it creepy? A Mexican restaurant? Chinatown? Just because you choose to not understand why people take an interest in their heritage doesn't make it creepy. But it might mean you're xenophobic.
A lot of people take a lot of pride and interest in their culture. How is that "fucking creepy"? As it happens, there is a lot of Middle Eastern blood in Sicilians, so she may have been right and her grandmother may have been right.
And why do you think that the author is asking people to feel sorry for her? She's just relating something that she learned the hard way that she regrets.