A few days after his first day back to school, he was in one of his advanced potions classes with Hermione Granger, his only love. He noticed that the Headmistress made their classes coincide more, for which he was grateful for. He thought he could use that to get closer to her. But for now, he was in his potions' class with Professor Slughorn.
"Now, who can tell me some of the forbidden and illegal potions to make?"
"Amortentia". answered his Mate as soon as the professor asked the question.
"Right on, Miss Granger, 10 points for Gryffindor."
As other students were naming other forbidden and illegal potions in the wizarding world, he was taking note of Ronald Weasley's bizarre behaviour with his Mate. He was complimenting her on how brilliant her answer was to the Professor's.
He then felt a twinge of jealousy surge in his heart because She blushed. She, Hermione Jane Granger, actually blushed at Ronald Weasley's compliment. He wished he were the one to make her cheeks go red, that she'd blush at his comments about Her intelligence, because she was the most intelligent witch in perhaps the whole school in his eyes.
And so he was jealous. Ronald Weasley was by now all over Her, and his heart was pulsating faster until he had to get to the Weasel. "Weasel, how dare he!" He thought as he was touching her hand. His jealousy intensified. He wanted to go to Weasley and tackle him, though just then, Parkinson abruptly interrupted the class and said :
"Would you excuse us, Professor Slughorn, your class is very interesting, but we need to go the bathroom."
"Permission granted, but be quick or you'll miss the most interesting part of my class." Their potions Professor told them.
"Thank you."
Which after, Parkinson grabbed his arm and led him to the girls' bathroom.
"What were you thinking?"
"I don't know, I just felt very jealous that the Weasel was touching my Mate. Mine, nobody else's."
"It's not time to play that sort of things, and by the way, did you know they're in a relationship?"
"What? My Hermione and that Weasel, together?"
"Yes, your Mate is dating Weasley." Draco frowned at her more polite way of calling him. Immediately after seeing his reaction to her calling Weasley by his family name, she corrected herself : "Fine, Weasel."
"So, She's already taken? How come I didn't know that?"
"Well, you weren't interested in her in the first place, plus you were too busy calling Her a you-know-what."
"Yes I know, I gotta make amends to Her for Her to see me in a new light."
"But first, we gotta find someone else for him because otherwise you'd never get Granger."
"Ok, but how would he be interested in anyone else?"
"I got my tricks up my sleeve."
"Always the conniving Slytherin princess, aren't you, Pans?"
"Yes. And I'm trying to help you here. I haven't detailed out my plan yet, but I'v already got a vague idea of how I'm going to proceed."
"Thank you, Pans, you're the greatest."
"Meanwhile, don't fight Weasley and don't act rashly, because it'll cost you her first good impression of you before you even tell her about your predicament."
"Thank you, Pans, really appreciate it. So, mind telling me your vague idea of how to get Weasel interested in another girl than my Mate?"
"Well, I know Lavender Brown's interested in him, so we could use her as a bait."
"Great idea. I think we should get back to class, we've been talking in the girls' bathroom for about 10 minutes already."
"All right, but promise me you won't do anything rash to Weasley."
"No, I won't. Let's go back to class for now."
For the reminder of the potions' class, he was immersed into glaring at Weasley, who was the whole time very close to her, which made his jealousy intensify even more. He now felt 10 times more jealous than the beginning of his class. If this continued any longer, despite his promise to his friend to not act rashly with Weasley, Pansy Parkinson, he might do something rash to the Weasel. In his mind, he always called him that.
After potions' class, he felt his legs sting. He had to go to the Prefect's private bathroom and quickly. He charmed his footsteps so he could run faster to his destination : the Prefect's bathroom.
There, he went at once in the bathtub, filling the whole bathtub, and as soon as he dipped one of his toes in the water, he grew a golden fish tail like he did at home. He knew then that every time he felt jealous about Her, he'd grow a fish tail. He merely hoped that he'd have time enough to get to the Prefects' bathroom, his now privileged destination.
After he grew a fish tail, he felt immediately better, less jealous. He understood by then that it was his body way to signal that he was jealous.
"Merlin, if every time Weasel touches my Hermione, I'm going to grow a fish tail, it's going to be a never-ending nightmare for me! And Granger'd find out soon enough about me being a Merman on her own." He was thinking out loud to himself.
"And Merlin, I'm stinging and hurting like hell. Why do I have to go through this?" He asked without getting an answer from anyone.
He felt so alone in this. Luckily, he got Pans to help him out in this and he vowed to be more civil to her in his future Prefects' duties with her.
