Peter might be shocked at first. He'd probably try to web - swing away to safety as quickly as possible.
The scenario where the Hulk hurts Peter in a fanfiction could be really complex. There could be a backstory to it. For example, if the Hulk has been mind - controlled by a villain. Peter might be trying to reason with the Hulk, but the Hulk, not being in control of himself, attacks. This could then set off a chain of events where the other superheroes have to figure out how to save Peter and also free the Hulk from the mind - control. It could also explore the emotional aftermath for Peter, who thought the Hulk was an ally, and now has to deal with the physical and emotional trauma of being hurt by him.
He's usually very protective. Peter Parker has always been responsible, and with She - Hulk pregnant, that sense of responsibility skyrockets. He'll constantly be on guard, using his spider - sense to keep her safe from any potential threats.
Naruto would probably be very confused at first. Kushina is his mother, so her hurting him would go against his understanding of their relationship. He might initially try to talk to her, to find out what's wrong and if there's a way to fix it.
Well, in fanfiction, his classmates' reactions can vary widely. There are those who are his friends and they would be supportive. They might cover for him when he has to run off to be Spider - Man. On the other hand, there could be classmates who are envious. They might spread rumors about him or try to expose his secrets just out of spite or envy. And then there are the classmates who are just indifferent. They don't really care about Peter's secret life and just see him as an ordinary classmate most of the time.
Peter could respond with a bit of humor. He might make a joke like 'I'm not a baby, Mr. Stark, I can handle myself!' while secretly enjoying the affectionate name. This would show his growing confidence in his relationship with Tony, being able to tease him back.
Peter may try to get Tony's attention back. He could show off his own skills or achievements in an attempt to remind Tony of his value. For example, he might go on a solo mission and do an amazing job, hoping that Tony will notice him again.
Peter could also be very nervous. He's still a young hero and being called by the Avengers in such a public setting like in class could make him feel self - conscious. He might stutter when he tries to answer their call and fumble with his things as he gets ready to leave. He'd be thinking about all the possible things they could need him for and whether he's really up to the task while also dealing with the eyes of his classmates on him.
Peter could also be a bit annoyed if it's not a good time. For example, if he was really focused on a test or a lesson he was interested in. But still, he'd probably answer because he knows Natasha wouldn't call without a good reason. He might give her a look that says 'this better be important' while trying to listen to what she has to say.
If he's unable to avoid it, Tony would be extremely conflicted. His face would show a mix of horror, guilt, and anger. He might yell at Thanos, blaming him for making him do such a cruel thing. After pushing Peter, Tony would likely be in a state of shock and self - loathing, feeling like he has failed Peter and himself.
Peter might be very defensive at first. He could argue back, trying to explain his actions. After all, he is a teenager with his own ideas and he may think that the Avengers don't fully understand his perspective.