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Love is poison. A sweet poison, yes, but it will kill you all the same.

George R. R. Martin (2011). “A Game of Thrones 4-Book Bundle: A Song of Ice and Fire Series: A Game of Thrones, A Clash of Kings, A Storm of Swords, and A Feast for Crows”, p.1362, Bantam
Love is poison. A sweet poison, yes, but it will kill you all the same.