There's also a possibility that Jake is just an ordinary person in the fanfiction world who has been given this extraordinary ability to imprint. This could make his character development really interesting as he has to deal with the consequences of this sudden and powerful connection to the reader. He might struggle with understanding his new feelings and how to act on them in a world that may not be used to such a thing.
Sure. 'Stronger' is based on Jeff Bauman's story. After the bombing, he had to endure not only physical pain but also mental challenges. Jake Gyllenhaal portrayed Bauman's struggle to regain his life in a very moving way. His performance really captured Bauman's determination to move forward and find a new normal in his life.
I haven't come across any reports stating that Jake Tapper is penning a novel. His focus seems to be on his journalistic endeavors, such as reporting the news, conducting interviews, and providing analysis. However, it's not impossible for him to venture into novel - writing in the future, but for now, there's no indication of it.