One popular AOT Female Eren fanfic is 'The New Path of Eren'. It offers a fresh take on Eren's character from a female perspective, exploring her relationships within the Survey Corps in a really engaging way.
AOT Female Eren fanfic is special because it offers a different view of the story. By making Eren female, it can change the dynamics of relationships. For example, her interactions with Levi or Armin might be different in terms of how society in the AOT world views gender roles.
Eventually, Eren might start to investigate the reasons behind Mikasa's betrayal. If he discovers that there are more complex factors at play, like she was forced or there was a misunderstanding, he could feel a mix of guilt for his initial reaction and relief that their relationship wasn't as broken as he thought. However, if he finds out that she truly betrayed him out of her own will, he might become even more determined to carry out his plans, whatever they are, without her.