Milk

"What the... heck?" asked Lance in shock when he opened his locker and a small chocolate fell from it. "I don't think we're anywhere near february."
His best friend, Chase, standing next to him, chuckled.
"I think you've got an admirer." he said, making a nearly unnoticeable gesture towards the shy girl hiding some lockers away. The light brunet didn't notice this.
Daniella, not knowing that she had been discovered, just took her math book from the locker and left, blushing.
Later that day, a note hit her head in class.
Tip: He hates milk chocolate.
She looked around, but couldn't find the sender.