She may also be worried sick about Peter. She might try to find ways to get Peter back, like contacting other superhero friends of Peter or even going to the media if she has to.
Maybe Tony believes that Peter is in some kind of danger that May can't protect him from. So, he takes Peter away to keep him safe in a more secure and technologically advanced place that he can provide.
Tony could be initially shocked. He might not understand why Peter would run away, especially if they had a good relationship before. He'd probably start searching for Peter right away, using all his resources.
Peter might be initially shocked and a bit scared. After all, Tony is like a mentor to him. But then he could become defensive, trying to explain his actions or point of view.
Peter might be initially very nervous. He's been keeping this huge secret from Aunt May for a long time, and now that it's out, he's worried about how she'll react. He might stutter and struggle to find the right words to explain himself.
Peter might initially be in a state of shock. He could isolate himself from his friends and the world around him, constantly replaying memories of Aunt May in his head. He may also feel a great sense of guilt, thinking that he could have done more to protect her.
Peter might be embarrassed at first. He's been idolizing Spider - Man and now Tony, a real - life hero - like figure, knows about it. But then he realizes that Tony could be an even greater source of knowledge and support, so he becomes more open about his love for Spider - Man.
Peter would probably be really confused at first. He looks up to Tony, and suddenly being kidnapped by him would be a huge shock. He might try to talk to Tony, asking him why he's doing this.
May could be completely surprised. Given that Drew has always been a bit of a rival and a bit aloof at times, she might not have expected his confession at all. So she could just stand there, mouth agape, not knowing what to say at first.
Peter is likely to be in awe. He might be a bit nervous at first, but also extremely excited. He has looked up to the Avengers for a long time, so meeting them would be like a dream come true. He would probably be stuttering a bit as he tries to introduce himself and show his respect.
Perhaps Peter is a bit annoyed at first. He's trying to focus on class and here's Tony calling. But then when he realizes it might be something important, he starts to pay more attention to the call, all while being cautious not to get caught by the teacher.