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Does my plot seem way too similar to Evermore?

Hi, I’m writing a book, and someone told me (very obnoxiously, actually,) on another comment that my story plotline is too similar to evermore by Alyson Noel. However, despite a couple of things and me using a name (Damen – which I actually took because he’s my favorite character in the Vampire Diaries) because I thought it sounded good, I don’t really think so. Here it is:

Basic summary:
Seventeen-year-old Aiislinn Collins had the picture-perfect life: she was the head cheerleader dating the captain of the football team, had a younger sister who completely adored her, and had two loving parents who, unlike most parents in their rich town, never even considered divorce. That is, until the accident; the doctors’ say that she should have died with Sarah and her parents, that her survival was a miracle, but Aiislinn knows it was nothing even close to one. Something wants her alive, and she has no clue what it is, nor what it wants from her. After being sent to live with her aunt, Aiislinn, using clues her sister’s ghost has been telling her in her dreams, must answer these questions herself.

More detail:

In my novel, there is a special race of humans called Lightlings. They are normal people, who have just a bit of both angel and demon blood in them. Now, because the lineage for whether you have enough angel/demon blood to be considered a Lightling requires just the right amount, it is very rare for one to be born. Once a Lightling turns eighteen, they will have to make a choice: whether they would like to become a full-angel, or whether they want to be turned into a demon. Aiislinn somehow managed to get the perfect genetics required to qualify to be a Lightling, and the leader of the demons has heard great things about her. When he sees her death approaching from that car accident, he quickly has one of his people pull her out, rescuing her from death. Aiislinn, however, becomes a mess, for she knows it isn’t sheer coincidence that she survived.
Damen, who had also been a Lightling, was forced to choose the path of demons, and is the guy who is sent to save Aiislinn. When the demon’s leader threatens his family once again, Damen is forced to go undercover at Aiislinn’s school to convince her to choose the Demon’s side. Because ghosts become aware of this ongoing battle, Sarah keeps returning to her, trying to show her what Damen really is, but Aiislinn doesn’t listen.

So, what do you think? Are they really “almost exactly the same”?

BTW, this is Evermore’s plot:
Since a horrible accident claimed the lives of her family, Ever can see auras, hear people’s thoughts, and know a person’s entire life story by touch. Going out of her way to avoid human contact and suppress her abilities has branded her as a freak at her new high school—but everything changes when she meets Damen.

Damen Auguste is gorgeous, exotic and wealthy. He’s the only one who can silence the noise and random energy in her head—wielding a magic so intense, it’s as though he can see straight into her soul. As Ever is drawn deeper into his enticing world of secrets and mystery, she’s left with more questions than answers. She has no idea just who he really is—or what he is. The only thing she knows to be true is she’s falling deeply and helplessly in love with him.