So, I'm writing an epistolary novel. A guy, who hates his life because he's been living the way others think it's right, gets a bunch of letters and diaries from his old friend (girl). They haven't seen each other in years because she was too free-spirited and his mother thought that he needs a proper, polite friends. While reading these letters, he understands what she's been going through and feels an urge to finally do something that HE wants, to go back to the girl who was the only one that made him feel alive. It's a simplified plot, didn't want to write all the details. I've been wondering if I should leave it this way and let it be a plain love story, or should I add some supernatural elements? Like her being a witch, or some unusual event when they finally meet.