Its Called Jealousy

Jealousy:
A sentiment that is born in love and which is produced by the fear that the loved one prefers another.

"A sharp pang of jealousy"

Synonyms:
envy, resentment,
bitterness, spite

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"What is this I'm feeling?" I asked him angrily. I have never felt this before, this hatred deep in my heart, this pain in my chest, this sadness in my mind.

He chuckles at me, "It's called jealousy, happens to the best of us."

"Jealousy? Why?"Just as I said that, I look over in their direction again and the feeling gets stronger. I clench my hand into a fist and look away from them. Instead I look at the ground as my best friend continues talking.

"Blake, you're jealous that he has that much of her attention. She's different, she doesn't throw herself at you, in turn you throw yourself at her. Yet she doesn't care, she doesn't know. All she sees is.. him." He says to me.