You Are My Monster (GL)

After losing her lover three years ago, Yang Xihe started having insomnia and developing a severe case of auditory and visual hallucinations. Every time she thought her beloved Hei Yuan was coming back to her, the cruel reality shattered her illusion. But she had never given up, still wishing for another half of her soul to return to complete her.
On a stormy night three years later, Hei Yuan suddenly showed up in front of her apartment’s door. But… was she truly real? Or, was she a monster in her lover’s skin?
Amidst her struggling heart, a strange pandemic suddenly appeared out of nowhere, letting hell break loose on earth and bringing the apocalypse upon humanity, forcing Yang Xihe to make a painful choice.
Loving Hei Yuan for what she truly was or ending the entanglement once for all.
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I don't own the picture used as the book cover, and it will be immediately taken down with notice.