Castle may become more reckless. Without Kate to balance him, he might take greater risks in his investigations. He could be less concerned about the rules and more focused on getting answers, no matter the cost. For example, he might break into places or confront dangerous suspects alone.
He becomes more withdrawn. Normally Castle is quite social and outgoing, but with Kate gone, he loses his spark. He may stop joking around as much and become more serious.
One common theme could be Castle's journey of grief. He might struggle to come to terms with her death, which could involve him isolating himself from friends and family. Another theme could be his determination to find out the truth behind her death, suspecting foul play even if others think it was an accident.
I'm not sure specifically as there could be many different interpretations. It might be a fan - created story where a character named Castle believes that Kate is cheating in the context of their relationship within the fan - created scenario.
I'm not sure specifically as there could be many different fanfics with that title. It might be about a character named Castle who has a strong belief that Kate is alive. Maybe Kate was in some sort of dangerous situation or presumed dead, and Castle is determined to prove she's alive.
Obviously, Castle and Kate are the main characters. Castle is the one who has the belief that Kate is cheating.
The main characters are likely Castle and Kate. Castle is the one who believes Kate is alive, so he's a central figure in this fanfic. Kate, whether she's present or just the subject of Castle's belief, is also a main character as the story revolves around her being alive.
He'd probably be shocked. Just freeze in place for a moment, not believing what he's seeing.
In a fanfic where they have a baby, their relationship would shift. They would now be partners not only in crime - solving but also in parenting. Castle would likely become more domesticated, helping with diaper changes and midnight feedings. Beckett would have to learn to let Castle in more on the parenting front, and they would communicate more about family - related matters. This new aspect of their relationship would add a different layer of complexity and closeness to their bond.
He might react with jealousy. He could glare at Josh and then give Beckett a hurt look before storming off.
He might become more protective. He'll be constantly on guard to make sure nothing bad happens to Beckett.
Some fanfic writers may have their own personal blogs or websites where they post their Castle fanfics. A Google search using relevant keywords such as 'Castle Kate Beckett pregnant fanfic blog' might lead you to these individual sites. However, be cautious as not all sites may be reliable or have high - quality content.