Maybe in the fanfiction, the other Avengers are seen as equally responsible. So, Tony doesn't bear all the blame for Ultron.
Well, in a lot of fanfiction, the idea is that Tony's creation of Ultron was a complex situation. He was acting out of fear for the safety of the Earth. The Avengers had faced many threats, and he thought an AI like Ultron could be a preemptive defense. So, the fanfiction authors don't blame him as they understand his motivation and the unforeseen consequences that came with his experiment.
One possible reason could be his excessive exposure to the arc reactor technology. The energy from the arc reactor might have gradually altered his DNA over time, causing him to become something other than human.
It could also be about narrative tension. Fanfic authors want to keep the story interesting. By having the Avengers be 'dicks' to Tony, they create a source of conflict. This conflict can drive the story forward, whether it's leading to Tony leaving the team for a while, or him trying to fix the relationships. It gives the author more room to explore different emotions and plot developments, like Tony's journey to regain the trust and respect of his fellow Avengers.
One reason could be to explore a darker side of the Stark family dynamic. It adds a new layer of complexity to the characters. By showing Howard as an abuser, it makes the readers re - evaluate what they know about the Starks.
He might dislike it because it can create false expectations. Fans read fanfiction and might start expecting the real Avengers to act in a certain way that is not in line with their true nature.
Guilt. For example, if he fails to save someone he cares about. He'll feel responsible and that could lead to him crying.
In fanfiction, emotional distress can also be a factor. If something really bad happens, like the loss of a loved one or the destruction of his work that he has put so much effort into, the shock and grief could be so overwhelming that he faints. Additionally, he could be suffering from some hidden illness that flares up suddenly and causes him to faint.
Fanfictions often take existing characters and put them in new situations. In the case of 'tony and ultron cock fanfiction', it could be exploring their personalities in a new light. It might be set in a post - apocalyptic world where they are the only ones left with certain abilities and they have to navigate survival while also dealing with their complex relationship. But again, this is all speculation without having read the actual fanfiction.
One possible reason could be differences in their superhero duties. Maybe their approaches to saving the world clashed so much that it put a strain on their relationship. For example, Tony might be more into high - tech solutions while Steve prefers a more traditional, hands - on approach.
One reason could be to explore the character's darker side. Tony Stark has been through a lot in the Marvel universe, and some fans want to dig deeper into his potential mental struggles, which could lead to thoughts of suicide.