AU: Amy Rose and Fiona Fox - Role Swap

AMY ROSE: Captured by Doctor Eggman in her childhood, Amy Rose was almost rescued by Sally, but instead, a robot copy of her was made of her and Amy was left in prison.
She made out alive after some time, but became a rather bitter girl.
Meanwhile, her robot copy was used against Nicole, who tried to be a Big Sister to the bot before it turned on her.
Later on, Amy joins the FF and immediately fell in love with Sonic the hedgehog, the leader of the freedom fighters, it seemed that his happiness had returned when she needed it most, as she had a big sister figure by her side and the possible love of her life in the same group as she was.
Nicole reverted to her 'big sister' role which Amy at first liked having someone looking out for her, but then came to resent as Nicole become over protective. and Amy still had a bit of a grudge against Sally, for never having saved her from that prison.
The pink hedgehog also had a certain violent and aggressive temperament, which made several freedom fighters not comfortable approaching her, something that Nicole noticed a lot about Amy and tried to help her a lot with, but her efforts did not seemed to work.
As soon as Anti-Nicky disguised as Nicky, started to flirt with Amy, she started to act as if Nicky was always her boyfriend, however, when the real Nicky didn't match her advances and just considered her as a friend, making her feeling heartbroken, combined with her discovering that it was Anti-Nicky who gave Amy more attention than Nicky, the way Amy always wanted.
She then betrayed the freedom fighters to join Anti-Nicky and Alicia.

FIONA FOX: Fiona at 13 years old already wanted to be a freedom fighter, but she was too young, she hero-worship Sally, and want to emulate her.
She then used the Ring of Hedgehogs and wished to grow old, just as she ended up with super agility, similar to her idol.
Fiona was now 16 years old just like Sally.
Possessing the ability to summon her own baseball bat with spikes, that whenever she hits something,releases tiny skull.
After some events, she realized that she didn't needed to pretend being a tough girl to impress her teammates, but even though she still admired Sally a lot, she started acting more tough and mischievous on her own and slowly started to get more of Fiona's canonical personality traits, without becoming mean obviously, also being a supportive figure to the rookies.
And even though she became a bit of a tomboy, she still had some feminine aspects, like loving to dress up and look good for casual events and parties, except when on missions, cause the outfit is just way more practical and she's kinda grown to like it.
After a while, Fiona began to regret using the Ring to become older, realizing that it had ruined her life by losing her childhood, becoming a new trauma in life that she had to overcome with the help of her friends.
Sally on the other hand was the one that always kept Fiona in check and saw her not only as a fan, or just a Freedom Fighter teammate, but a great friend.