In the fanfiction, Tobias might save Tris from Peter by using his physical strength and combat skills. He could have jumped in just as Peter was about to harm Tris, overpowering Peter and getting Tris to safety. Maybe he used his knowledge of the area to find a hiding place for Tris away from Peter's reach.
In this fanfiction, Tobias may have had an advantage in saving Tris from Peter due to his reputation. Peter might have been a bit intimidated by Tobias. Tobias could have used this to his advantage. He might have confronted Peter directly, with a confident and menacing stance. His mere presence could have made Peter hesitate long enough for Tobias to whisk Tris away. Also, Tobias might have had some allies who helped him create a diversion, allowing him to rescue Tris without much of a fight from Peter.
Eric might also use his position of authority. If he's in a position of power within the story's setting, he could simply order Peter to stop. For example, if Peter is violating some rules of the group or faction they belong to, Eric could threaten him with punishment if he doesn't let Tris go.
Love could be a strong motive. If Tobias has feelings for Tris, he would naturally want to protect her from harm, especially from someone like Peter who might be a bully or a threat.
The significance could be that it's a return to their roots. Abnegation was part of their past, and meeting there might symbolize a reconnection with that part of themselves.
I'm not sure as I haven't read this specific fanfiction. It could potentially involve Tris being in some sort of danger from Peter, and 'four' (presumably a character) coming to her rescue. Maybe Peter has some malicious intentions towards Tris, like trying to harm her or get her into trouble, and Four steps in to prevent that.
In the fanfiction 'four saves tris from peter', the most prominent characters are Four, Tris, and Peter. Four is likely to be a brave and capable character, with qualities that enable him to rescue Tris. Tris is probably a character in need of help, perhaps she's in a weak or dangerous position. Peter, on the other hand, seems to be the source of trouble, the one who poses a threat to Tris, which prompts Four to take action.
Love is a very common theme. Their relationship is often explored in more depth, showing their devotion and the challenges they face as a couple.
Another option is to check fanfiction communities on social media platforms. There are often groups dedicated to Divergent (the series Tris and Tobias are from) where fans might share or recommend pregnant fanfiction about them.
You can start by looking on fanfiction platforms like Archive of Our Own. Just type in 'Tris and Tobias' in the search bar, and it will show you a bunch of related stories. You can also check out some dedicated fanfiction communities where fans discuss and recommend their favorite Tris and Tobias fanfictions.
The best element is the build - up of emotions. In many fanfictions, the authors slowly develop the relationship between Tobias and Tris, so when the kiss finally happens, it feels very natural and satisfying.
One popular Tris and Tobias fanfiction might be those that focus on their post - apocalyptic life adventures together, exploring how they continue to face new challenges. Another could be ones that delve into their relationship development before the events in the original story. There are also some that might imagine alternative universes for them, like a modern - day setting where they meet in a completely different context.