It's just bullshit anyway, don't expect this idiot author to write anything meaningful...
It's probably purely romantic... Probably not a complete love (this person is hopeless...
RP version: A story about a girl who fell in love with someone she shouldn't love, and became depressed and eventually lost her memory.
Literary version: God knows one day she will forget him.
Just because remembering him is too painful. Even if you are watching from the side, she will completely forget it.
In fact, it's just a bloody novel, a story about a girl chasing a man for love, but it doesn't end well.