Well, Hermione could have a range of reactions. She might be taken aback for a moment, but then quickly compose herself. Given her friendship with both Harry and Ginny, she would likely offer her advice to Harry, like making sure he is really in love and not just infatuated. She may also remind Harry to be careful with Ginny's feelings.
Well, perhaps Hermione would then encourage Harry to spend more time with Ginny. This could lead to some cute moments between Harry and Ginny, like going on small adventures together. And there might be some jealousy from other characters who also like Ginny.
Well, Hermione could start arguing with Harry. She might say that he misread her actions or expressions. She could bring up past events to show that she has no reason to be jealous, like pointing out her own achievements and contributions which should make her above such petty feelings. And she may also question Harry's motives for saying so, wondering if he is trying to manipulate the situation or her emotions for some other reasons.
She might be shocked at first. Hermione is used to being seen as the voice of reason, so being called a hypocrite by Harry could leave her speechless for a moment.
In the fanfic, Harry could have a range of reactions. At first, he might be in denial, thinking that Hermione is just joking or that she will change her mind. Then, when he realizes it's for real, he could get angry, feeling like he's been unfairly judged or rejected. However, over time, he may come to accept it and focus on other aspects of his life, like his fight against the dark forces or his relationships with other friends.
She might initially be shocked. Since they are usually friends in the original series, Hermione in fanfiction could be taken aback by Ginny's sudden unkindness.
She could get angry. Hermione, being the strong - willed character she is, might feel betrayed that Harry is leaving. She might yell at him, asking him why he's doing this and how he could leave her after all they've been through together. Her anger is really a mask for her deep sadness and fear of losing him.
She might be initially confused. Hermione is a logical person, and without an obvious reason for Harry's silence, she would be at a loss. She would probably try to think back on their recent interactions to figure out what went wrong.
Perhaps she tries to find them right away. Using her intelligence and resourcefulness, she starts to search for any clues as to where they might have gone. She could ask other friends, like Neville or Luna, if they have seen Harry and Ron. And she might be determined to bring them back, not willing to give up on their friendship easily.
Yes, there are quite a few. You can check out some popular fanfiction websites like Fanfiction.net or Archive of Our Own. Just search for the relevant tags or the specific phrase 'Harry tells Hermione that he loves her' and you'll likely find some interesting reads.
Ginny might be overjoyed. She could blush deeply and then give Harry a big hug, telling him she feels the same way.