What are the possible reactions of a married man when he finds out he's gay?

He could be shocked at first. Just the sudden realization that the people he thought were his biological parents all his life are not would be a huge blow.

In some fanfictions, Edward might be initially shocked. He could be worried about Bella's health, considering the unique situation of a human - vampire pregnancy. He might also feel a sense of protectiveness towards Bella and the unborn child, and start making plans to ensure their safety.

He might be completely devastated. In many fanfictions, Edward enters a state of deep despair. He could isolate himself from others, feeling like his world has ended without Bella.

He might be shocked. Draco has always seen Harry as an equal rival in some ways, but finding out he is Lord Black means Harry has a whole new level of status. So, shock is a very likely initial reaction.

In many fanfictions, Naruto is initially in a state of shock. He can't believe that Jiraiya, his mentor, is gone. He might go into a period of deep sadness and isolation, withdrawing from others as he tries to process the loss.

In some fanfictions, Naruto is completely devastated. He might go into a state of shock at first, unable to believe the news. Then he could be filled with intense grief and anger, blaming himself for not being there to protect Jiraiya.

The kid might be shocked at first. He could feel a mix of excitement and disbelief. For example, in many stories, the kid suddenly has to come to terms with a whole new life of luxury and responsibility.

First, he needs to give himself time to fully understand and accept his own identity. Once he has a better handle on it, he can decide how to approach the marriage. He may find that he can't continue in the marriage as it is, and in that case, he should approach the separation process with kindness and fairness. It's also important that he looks after his own mental health during this difficult time, perhaps by reaching out to a counselor or support group for gay men who have been in similar situations.

He might be shocked and filled with anger. He could immediately want to comfort Harry and ensure his safety.

She could be initially shocked. After all, finding out your friend is a superhero is a big deal. But then she might become excited and want to be more involved in Peter's Spider - Man life.