deja vu: a silena beauregard story

Ever since Silena Beauregard was a child, she would have strange, almost prophetic-like dreams about a handsome, golden-haired prince from Phthia. But unlike every other demigod, her dreams aren't trying to warn her about imminent death; they're just dreams. If anything, their only use seems to be giving her poorly-timed deja vu. And they only continue to get worse the older she gets.
At age sixteen, Silena comes to a terrifying realization: her dreams are a double-edged sword, and they come with a cost she's not entirely sure she can afford. Will the visions of her golden-haired prince's death in the Trojan War save her or lead her to her own demise?

Or: What if Silena was really just the reincarnation of Patroclus?