The next morning the four and Marinette walked to school, the sun shone and the sky was blue.
Miles, Kamala and Applejack chatted with Marinette while they walked.
Rarity walked slightly behind the group, the negative thoughts from the previous night still refusing to remain silent.
"Were their friends really trying to save them? or had they given up and moved on? Had they replaced them with new friends?"
Rarity's mind also drifted to the possibility that she and the others could be stuck on this earth forever, "what would happen to her house and boutique? Who would look after her sister, Sweetie Belle and her cat, Opalescence? How would her parents react to her disappearance?"
All those questions buzzed around inside Rarity's mind, all throughout the day Rarity couldn't stop thinking about the burning questions.
Applejack and the others asked her if she was okay, Rarity reassured them she was fine, but really she was trying not to go mad with the questions swarming in her mind.
Applejack, who could spot when someone was lying, knew that something was bothering her friend.
Even without Pinkie Pie, she could tell that the smile on Rarity's face was fake.
Applejack knew she had to confront her friend about what was bothering her.
Elsewhere.
"Well, well, well," Gabriel Agreste proclaimed, as the window in his secret room opened, the butterflys scattering everywhere, "it seems someone's mind is swimming with negative thoughts, the perfect bait for my Akumas."
As if on cue, Nooroo, the Kwami of Akumatization appeared, Gabriel kept the Kwami's Miraculous on his person at all times, hidden underneath his tie.
"It is time, Nooroo," Gabriel smiled, "Dark Wings Rise!"
With that, Gabriel Agreste, once again, transformed into Hawkmoth.
Like before, Hawkmoth took one of the pure white butterflies and transformed it into an Akuma.
"Fly away my little Akuma," Hawkmoth declared, as the butterfly exited the room through the open skylight, "draw out those negative thoughts and create a villain that can help get Ladybug and Cat Noir's Miraculous."
Back at Françoise Dupont Middle School.
Rarity sat alone, the dark thoughts from the beginning of the day still continuing to haunt her.
The thoughts were threatening to drive her mad when someone approached her.
That someone was Lila Rossi, a student in Marinette's class and known attention seeker, lier and manipulator. She had been in the classroom when Rarity and her friends had arrived and viewed them as opposition for popularity in the school. She had noticed Rarity troubled look and unsuccessful attempts to hide it and she view it as the perfect opportunity to manipulate her. 
"You OK?" she asked, "you seemed like something's bothering you."
"Thank you for your concern," Rarity replied, "I'm just feeling a little homesick."
"I can't imagine what you're going through," Lila said, putting on a fake sympathetic smile, "being away from your family and friends."
"Like you wouldn't believe," Rarity whispered.
"I mean," Lila continued, "who's to say that your friends and family back home haven't already forgotten you and moved on."
The dark thoughts started to rise in Rarity's mind again, as Lila kept on talking.
"I mean they might have already replaced you with a new friend, a better friend," she carried on.
Finally, the dark thoughts refused to stay silent and they screamed in Rarity's head, so loud that she couldn't hear the rest of what Lila was saying.
With tears in her eyes, Rarity ran off wanting to find a different place to be alone.
Lila watched as Rarity ran off, a satisfied smile on her face.
Once Rarity had found another spot, she sat down and trying her best to hold back her tears.
It was then that the Akuma, guided by her negative emotions, found her.
The Akuma phased into Rarity's three diamond hairclip, creating a telepathic link between her and Hawkmoth.
A butterfly-shaped light mask appeared on Rarity's face, her eyes darken to a dark blood red and Hawkmoth's voice was heard in her head.
"Black Diamond," he said, "I am Hawkmoth, it has come to my attention that your friends have abandoned you and I can give you the power to make them pay and let the world share in your pain and sadness, but I can only let you have the power if you bring me Ladybug and Cat Noir Miraculous."
"So be it," Rarity answered, "my friends and the world need to learn and feel what happens when you discard a friend so carelessly."
Having accepted Hawkmoth's deal, dark purple ether flowed from Rarity's hairclip, covering her entire body.
As quickly as it appeared, the dark purple ether dissipated revealing Rarity's new form, the Akumatized villain Black Diamond.