The Saints Have Fallen

After being stripped of his title as a God and turned into a demon in the presence of his brother, Yuri was banished to earth to live amongst the humans whom he hates. 200 years later, a young girl shows up at his doorstep holding both his life and death in her hands whilst not having any idea of the power in which she possesses.
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An exiled God, seeking revenge on the Gods.
A human girl, devoted to the Gods.
And their "accidental" marriage.

Put Adrian Vandermir of 'Fatal Alliances' and Vitaly Rostov of 'Damned' together, with a dash of unearthliness and what do you get?

Excerpt.
The scent of smoke tickled through my nostrils. I coughed and twisted, feeling cold and damp. My heavy eyelids peeled itself open tiredly. My heart stopped at the image before me. The snow haired man sat before me, observing me in my sleep, while smoking a pipe nonchalantly. A flush of blushed panic shocked through my body.

"You creep!" I shrieked, threw a pillow at him, and missed in reflex. I was mortified. Did he really sit there watching me sleep while my clothing thinned upon my body due to the rain? What a perv.

Unbothered, he exhaled a cloud of smoke. "What is a perv and why are you screaming?"

I blinked. How did he...?

"You are quite an ugly creature, I must admit." He continued.

Did he just call me ugly? My eye twitched. The nerve of this guy.

"Oh, says the one who's trying to observe and take advantage of the poor helplessly soaked sleeping lady on your sofa."

He frowned in confusion, "I do not see any lady, only a filthy little rug rat perched with drool from her mouth staining my sofa." He stood and turned, "However, if it makes you feel any better, you do not have much for me to observe in order to 'take advantage' of."

...