Ignition of a Spark

"The little spark left in her erupted into such a large flame, it boiled her blood and made the thought of this sand-colored haired person impossible to get out of her head."
Alyssa was content; a boyfriend she loved, good grades in school, and a best friend. When her closer friend Nathan flirts with her best friend, Alyssa's world is turned upside down. She had a small spark of romantic interest in Nathan, but when he flirts with Stephanie, and Alyssa gets dumped, it quickly errupts into a burning flame that nobody can control. I
The question is, whether or not the feeling mutual.