In the last chapter:

"I love you, Kowalski!"

Harriet hugged Kowalski happily. Kowalski finally managed to pry her away and back away, flippers up and breathing heavy.

Skipper raised an eyebrow at Kowalski, who shrugged with a nervous smile. Skipper narrowed his eyes, his suspicions revealed.

"Um… cake, anyone?" Private broke the awkward silence. "No one? Okay then…"

Kowalski cocked his head at Doris, who turned away.

"Huh." Kowalski said. "Well, bye everyone. Great party, um… great pool water. You guys should win the first prize for good pool water. Anyways, I really should be going-"

"Your not going anywhere without me!" Harriet hugged Kowalski. Kowalski broke free of her grasp and ran off, leaving the crowd watching stunned. Then they all returned to their conversations.

Harriet became Kowalski's shadow. She followed the tall penguin wherever he went, always throwing in "Kowalski is my boyfriend. Aren't I lucky?" to everyone they met. Kowalski mostly tried to hide his face and wait for it to be all over.

Later that week…

"Watcha working on, my love?" Harriet said.

"It's a- Could you fetch Private?" asked Kowalski.

***

"So you made a love potion… and fed it to Harriet by mistake. And now you've made a hate potion so she'll hate you?" asked Private.

"That's the plan." Kowalski crossed his arms. "And I think I did a pretty good job of it mehself."

"How do you know it'll work?" Private said. "I mean, what if I take it by accident? Or Rico?"

"Nonsense, Private. The plan is exactly 79.45 percent going to work."

"Did you just make up that number, or-"

"A scientist always knows. That's why you're going to be my apprentice when you are older."

"Apprentice?" Private looked nervous.

"Enough of that. Could you make some lemonade?"

Even later…

"I must say Private, this lemonade is simply delicious. It's like a party in my mouth." Skipper gave Private a high five.

Private sipped some of his. "I know. I think I did a pretty fine job."

Kowalski waited for Harriet to come and tell him how much she hated him but she never came.

"Kowalski, did I ever mention how much I HATE YOU?" Skipper yelled.

"Oh boy." Kowalski hit his face into his hands.

"Not as much as I hate BOTH of you!" Private yelled back.

"Hate!" blathered Rico.

Harriet ran over and hugged Kowalski.

"I love you, Walski." she said with a smile.

"I-sigh-hate you too, Harriet." Kowalski sat down and waited for it too wear off.