First of all, thanks to weegeelovesmario! This truly lovely person is beta-ing this story. And I can't think of a better Beta-Reader, honestly!
This story is dedicated to my girlfriend. There are a lot of headcanons we have about PnF in there, so… you might not like all of them, but I do hope that you're going to enjoy this story though.
Thank you so much for reading this! (:
Prologue
( Wikipedia on "Probability Theory": Pierre Simon de Laplace (1812). Analytical Theory of Probability. The first major treatise blending calculus with probability theory, originally in French: Théorie Analytique des Probabilités)
You could say there was a fairly high probability that Isabella's effort to impress her neighbour was going to fail again in the future.
What had a much lower probability was that the younger one would notice just how much she liked him.
Actually, she liked him a lot.
She liked him, well, very, very, very much. Probably as much as a fifteen year old could like someone.
However, this time she missed her aim. Literally.
"So, you reached out for his hand, and…"
Isabella quickly glanced at her fireside friend. Afterwards, she focused on her teacher again for a moment, then suddenly back to the green haired boy in the front row.
She nodded, but gestured that her friends should be a lot quieter now. The two girls giggled enthusiastically and hid their red faces behind their mathematics textbooks.
"… suddenly noticed that you've held the wrong one."
It didn't take long until the Mexican girl blushed.
Why did she even tell them about the incident? She knew what was going to happen from now on. First the sassy comments, then they'd start bending the truth and sometime soon they'd definitely talk to the stepbrother of her crush and- and-….
She groaned loudly while her friends were still having a good time discussing what happened.
Had it been truly that bad? Did they have to celebrate all of her pathetic attempts to express her feelings towards Phineas?
Oh, and thinking about it, every single time she attempted to be close to her crush she failed.
And no matter how she struggled, no matter how she worked up the courage to ask him for date, she came to nothing.
About one week ago she failed again. Big time.
Yes, she didn't hold Phineas' hand. She could've sworn that he had been to her right. But then, all of a sudden, Ferb had been standing there instead.
She had held the elder brother's hand, for exactly 53 seconds no less! And the worst thing of all was that she hadn't even noticed.
And the sudden stroke over her hand, when he had turned to her and assured that everything was going to be alright.
Awkward.
"Wow, Izzy, that had been…truly… truly piteous."
One of the fireside girls took a deep breath to recreate after the massive lack of oxygen on account of the giggling.
No, it had been rather piteous to have told them about the happening in the first place. After all she had known what was going to happen.
Obviously, this year was going to be just terrible.
Especially after their teacher suddenly cleared her throat, raised her voice as the three girls lifted their gazes behind the workbook, Isabella knew this year wasn't going to be terrible, no – it was going to be devastating.
Actually, she didn't know whether her teacher had overhead something of their discussion, but there must've been some kind of evil scheme going on when she had to move two rows closer to the blackboard.
The whole universe seemed to hate her.
She had been seated right next to Ferb Fletcher.