Often, in these fanfictions, Eren develops more empathy. He starts to really understand Mikasa's feelings. For example, he might realize how much his actions impact her and become more cautious. He becomes more of a protector instead of just a fighter.
Well, the Gangsta manga ends with a mix of closure and ambiguity. Some characters get the resolutions they deserve, but there are still elements that make you think and wonder about the future.
Well, in eren and annie lemon fanfiction, Eren may be depicted as having a strong, almost obsessive attraction to Annie. His character might be written to be very determined in his pursuit of her. Annie could be presented as having a complex mix of emotions. She may initially resist Eren's advances due to her own guarded nature, but then gradually give in. These characteristics are often used to create a more intense and emotional relationship dynamic in the fanfiction. However, it's important to note that this is a departure from the official story and is the creative interpretation of the fan authors.
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.