How was Tony abused by Howard in Avengers fanfiction?

It really depends on the specific fanfiction. Some writers might explore such a dark and controversial theme, while others won't. Fanfiction is highly diverse and can take all kinds of creative directions.

The portrayal of abuse involving Tony Stark and Howard in fanfiction is quite diverse. Some stories might touch on it to add depth or drama, but not all do. It's really up to the imagination of the fanfic writers.

It depends on the specific fanfiction. Some stories have Howard conducting experiments on Tony, while others don't touch on this plotline at all.

Yes, in some fanfictions, Howard is depicted as abusive to Tony, adding a darker layer to their relationship.

Steve might compare Tony to Howard based on their personalities or leadership styles. Maybe he points out similarities or contrasts in their decision-making.

Maybe it's because of some past misunderstandings or conflicts that haven't been resolved.

The abuse theme might show the long-lasting effects on Tony's character development and his interactions with others in the Avengers universe. It could also explore Howard's motives and the potential for redemption.

It could be a plot device to create drama or tension within the story. Maybe Howard was distracted or had some sort of confusion that led to the mistake.

Maybe Howard was under a lot of stress or had some sort of memory lapse that led to this mistake. Or it could be part of a magical or alternate reality scenario.

Time travel in such fanfiction can be a means for Tony and Howard to have deeper interactions or understandings. Maybe they go back to a crucial moment to gain new insights or to form a stronger bond. It really depends on the creativity of the author!