She might be really happy and excited. After all, it's great to have someone appreciate your creative work.
She may be initially surprised, especially if she didn't expect Christian to be into fanfiction at all. Then she would feel a sense of validation and connection with him. This could lead to her feeling more confident in her writing and perhaps even be motivated to write more, knowing that she has an interested audience in Christian.
She could be hesitant. Given Spike's nature and their history, Buffy might not be sure if she can trust his feelings or her own response to them.
Maybe he is genuinely interested in the creativity and the unique world she has created in her fanfiction. It could also be that through her fanfiction, he gets to know a different side of her, a more imaginative and expressive side, which he finds very appealing.
In some fanfictions, Harley might react with shock and disbelief at first. She has been through so much with the Joker that she might not trust his words immediately.
Bulma might be a bit skeptical at first. Given Vegeta's tough exterior and past behavior, she may wonder if he really means it. But as he continues to show his sincerity, she would gradually accept his love and reciprocate it wholeheartedly. She might also start planning their future together right away, thinking about things like family and a more stable relationship.
Harley might react with shock at first. Given Joker's usually callous treatment of her, hearing him say 'I love you' would be unexpected. She could then become extremely happy, like all her dreams have come true.
Well, Felicity might be overjoyed. She could see this as Oliver not only loving her but also loving her creative side. This could lead to her feeling more confident in her writing. Maybe she'll start to write more, inspired by Oliver's love for her fanfiction. And perhaps she'll even start to include Oliver more in her creative process, bouncing ideas off of him and asking for his input.
When Draco tells Hermione he loves her in fanfiction, it adds layers to their characters. Draco becomes a character with a capacity for deep emotion and change. He's no longer just the Slytherin antagonist. Hermione, on the other hand, may be portrayed as more open - minded and empathetic. This new dynamic between them can redefine their individual characters within the fanfiction narrative. It's a way for writers to play with the established personalities and make them more complex.
She might be initially surprised. After all, it's an unexpected way to declare love. But then she could be flattered that Castle has such strong feelings for her that he expresses them even in his fictional writing.
He might get angry right away. Christian could confront Ana and the man immediately, demanding an explanation. His possessive nature might take over, and he could act impulsively without thinking about the consequences.
She might be overjoyed and immediately reciprocate his feelings. In many fanfictions, their relationship is built on a deep connection, so this could be a natural response.