The Immortal Family’s Peerless Dragon Transformation Fate

I was born with a pure Yin constitution, making me prone to attracting monsters and evil spirits. When I was born, five immortals blocked the road, and demons and ghosts wailed through the night. I've been frail and sickly ever since I was a child. My parents took me everywhere in search of a cure, but nothing worked. Then we met a wandering old Taoist, who declared that this wasn't an illness, but my fate. My parents begged him desperately, and he came up with an unusual solution: have me marry a snake immortal.

Why does this sound a bit like the Legend of the White Snake? Except I think the one I married was Xiaoqing...