He might cry a lot. Deku is very emotional, and being cheated on would be a very painful experience for him. He could also get angry, which is rare for him, but this situation would be so unjust that he might not be able to hold it in. He'd probably start to question his self - worth too, thinking that there was something wrong with him that made his partner cheat.
One interesting 'izuku gets expelled' fanfiction could be where he gets expelled due to false accusations of cheating. In this story, villains frame him to get rid of a potential threat. Another might be a story where his quirk goes out of control during a test and the school, in a panic, expels him. There could also be a fanfic where a jealous classmate sets him up to look bad and get expelled.
One possible plotline could be Bakugou's journey to redeem himself after the expulsion. He might have to face his own flaws and work hard to prove that he can change. Another could be how his friends react to his expulsion, some might be shocked while others might try to help him get back in. Maybe there's a plotline where he discovers a new power or ability during his time away from school that makes him even stronger when he eventually returns.
Well, one possibility could be that Mineta's inappropriate behavior finally catches up to him. Maybe he makes one too many lewd comments or actions towards his female classmates, and the school decides it's enough. So he gets expelled.
In fanfiction, if Deku gets kidnapped, his friends from U.A. High would likely launch a rescue mission. Bakugo might be especially determined, as much as he tries to hide his concern. They would use their quirks in creative ways to track Deku down.
There's also 'Injured and Alone'. In this fanfiction, Deku gets hurt while on a solo mission. It delves deep into his thoughts as he tries to survive in a dangerous situation, all while being severely injured. It's a great read for those who like character - centric stories when the character is in a tough spot.
Well, in the fanfiction, Deku might get a new look that changes how others perceive him. Maybe his friends at U.A. High are really surprised by his new haircut and it could lead to some funny or heartwarming interactions.
Well, it's popular because it taps into real - life issues like bullying. Many readers can relate to Deku's experiences on some level. Also, it creates a sense of drama and tension. We as readers are rooting for Deku to come out on top, and the whole process of seeing him deal with the bullies and grow stronger is very engaging. Moreover, it gives fanfiction writers a chance to put their own spin on the character and his backstory, which is always exciting for the fandom.