Harry could be flattered. Fleur is considered very beautiful, and for her to show interest in him would boost his self - esteem. He might stammer out a response, something like 'I - I'm honored, Fleur.' while blushing furiously.
One possible reason could be that Fleur sees Harry's courage. In the 'Golbery of Fire' events, Harry shows great bravery, and Fleur might be attracted to that. She herself is a confident and somewhat proud character, and a brave partner like Harry could be appealing to her.
Gilbert might be an original character created specifically for this fanfic. He could be a student at Hogwarts from the Fire Fleur house, which is likely a fictional house made up for the story. He may have unique magical abilities or a distinct personality that draws him to Harry.
In the fanfic, perhaps there will be a lot of blushing and nervousness from Harry. Maybe he's initially taken aback by Gilbert's forwardness. He might need some time to think about his feelings, as he has so much else going on in his life, like dealing with Voldemort and his Hogwarts studies.
He might be a bit shy and stutter out a simple 'you're welcome'. Harry is often modest in such situations.
Well, Fleur is a complex character. When she finds out about Harry's abuse, she might initially be in disbelief. But once it sinks in, she would feel a deep sense of sympathy. Fleur might use her own experiences to relate to Harry. For example, she has faced prejudice in the wizarding world due to her Veela heritage. She could draw on that strength and determination to help Harry. She may offer him a place to stay away from his abusers, and use her magic to create a safe and comfortable environment for him. Also, she could start training Harry in some defensive magic so that he can protect himself in the future.
Some of the villagers might be really happy for them. Naruto is a hero to the village, and Tenten is a respected ninja. People would see it as a positive thing, a sign of new beginnings and love in the village. They might even start to speculate about their future together, like whether they'll have ninja kids who will be super powerful.
In many fanfiction interpretations, Fleur's response would depend on how the author has developed her character. If the author has portrayed her as more open - minded and adventurous, she might quickly accept Harry's invitation with a smile. But if she is depicted as more cautious or reserved, she could decline politely, perhaps stating that she already has other plans or that she doesn't think it would be appropriate given the inter - school dynamics.
He might be initially in shock. Harry could stand there, unable to believe what has just happened. Then he might become angry, lashing out at his mate or the situation in general. He could say things he doesn't really mean in the heat of the moment.
Perhaps Harry just stands there, silently crying at first. He might be in shock that Snape has been so cruel. Then, he could start to think about what Snape has said or done, trying to understand if there is any truth in it. Harry is a deep thinker, and this situation might force him to re - evaluate his relationship with Snape and his own actions in Hogwarts.
Voldemort might initially be amused. He could see Harry's request as a sign of weakness and laugh at him, thinking it's a trick. After all, they have been enemies for so long.