Iron Man, on the other hand, might be more direct. He could use his technology to track Peter's actions and confront him. He might threaten to expose Peter's identity if he doesn't stop. And Thor would probably be angry at first. He values his fans a great deal and seeing Peter bully them would make him want to use his hammer to teach Peter a lesson, but then he would also try to understand the situation.
Black Widow would likely investigate the situation secretly. She would try to find out if there's someone else behind Peter's actions. If she discovers that Peter is being manipulated, she would try to free him from the influence and also make him apologize to the fans. The Avengers as a whole would probably try to protect their fans and also rehabilitate Peter if possible.
The Avengers would initially be in shock when they find out Peter is sick. Clint Barton would be the one to keep a calm head and start organizing things. Wanda Maximoff would try to use her powers to ease Peter's pain if possible. Vision would use his vast knowledge to try and find a solution. They would all be very concerned and do everything they can to make Peter better, from getting the best medical help to providing a safe and comfortable environment for him to recover.
The Avengers would react very strongly. Steve would be the first to offer moral support. He'd tell Peter that being bullied doesn't define him. Natasha would start investigating who the bullies are and their motives. And Vision, with his unique perspective, would try to help Peter see the situation from a different angle, to understand that the bullies are often the ones with insecurities. Meanwhile, Sam would be there to cheer Peter up with his friendly banter.
Some Avengers might be initially skeptical. Thor, for example, might not understand the power of a 'spider - boy' at first. But others like Captain America would probably see his potential and welcome him. Black Widow might be intrigued by his skills and try to train him further in espionage - related aspects.
The Avengers might react in different ways. Steve Rogers would probably be polite but firm in getting to know Peter's boyfriend. He'd want to ensure that he was a good influence on Peter. Thor, on the other hand, might be a bit more boisterous. He could either be really friendly and enthusiastic, or his loud and powerful presence might accidentally scare the boyfriend a bit.
One possible plotline could be that Peter Parker, out of jealousy perhaps. Maybe he's jealous of the Avengers' popularity and starts to bully fans who idolize them. For example, he could use his spider - abilities to play pranks on fans at Avengers - related events, like stealing their autographed memorabilia or causing minor disruptions during meet - and - greets.
They might be shocked at some of the dangerous situations Peter has been in without their knowledge. They could feel guilty for not being there to protect him more. And they would likely be very proud of his selfless acts.
Tony Stark might use his quick wit and technology. He could immediately scan Peter to make sure there's no physical danger causing the hyperventilation. Then he'd probably crack a joke to try and calm Peter down, like 'Kid, you breathe any faster and you'll fly away like a human jetpack.'
In some fanfictions, Peter uses his intelligence to outwit the bullies. For example, he might use his scientific knowledge to create small gadgets that make the bullies look foolish without using his superpowers directly. This shows his resourcefulness.
Peter could rely on his own inner strength. He has a strong moral compass, so he might use that to remind himself that the Avengers' actions are wrong, not his. And then he could focus on using his Spider - Man skills to prove his innocence or protect himself.
Peter Parker's spider - sense and super strength, along with Spider Gwen's acrobatic skills and wall - crawling ability, would add a new dimension to the Avengers' combat capabilities. Their agility could help in quickly evading attacks and getting to hard - to - reach places during battles.