It might also create a complex dynamic. His dad could have mixed feelings, being proud of Adrien's heroics but also worried about the dangers. This could lead to a relationship filled with tension and negotiation as they try to find a balance between Adrien's superhero duties and his father's concerns.
On the other hand, it could bring them closer. His dad might start to see Adrien in a new light, as a brave and capable hero. This newfound respect could lead to a more open and trusting relationship between them.
One idea could be that his dad initially reacts with shock and disbelief. He might start to question how he didn't notice all the signs before. Then he could try to use Adrien's identity as Chat Noir to further his own business or social standing in some way, creating a lot of internal conflict for Adrien.
Well, it depends on how much his dad knows about Cat Noir. If he doesn't know much, he might be a bit confused at first. He could ask Adrien what exactly a Cat Noir fanfic is all about. Maybe he'll be dismissive if he thinks it's just some silly fictional thing that distracts Adrien from more 'important' matters. But on the other hand, if he realizes it makes Adrien happy, he might be more accepting in the long run.
With his other friends, Adrien's jealousy can make him seem preoccupied. If they're all hanging out and Luka and Marinette are interacting, Adrien might not be as engaged in the group activities. His friends might start to wonder what's wrong with him and try to cheer him up, but he'll still be focused on his jealousy towards Luka.
He could also start acting out of character. Maybe he becomes more competitive towards Luka. If they are both in a band or something, Adrien might push himself harder to be better than Luka just to get Marinette's attention. He could also be more snappy or short - tempered with Luka, even if he doesn't mean to be.
Well, it really depends on how the author writes it. If the overprotectiveness is written in a way that respects Marinette's agency, it could be a cute and endearing aspect of their relationship. But if it comes across as controlling, it might make Marinette resent Adrien, and then they would have to work through those issues to have a healthy relationship.
The kittens can act as a catalyst for their relationship. As they play with the kittens, they might start to see each other in a new light. Marinette could see Adrien's soft side when he coos at the kittens. And Adrien might notice Marinette's nurturing nature. This newfound understanding can deepen their feelings for each other. They could start to be more open and honest with each other because of these shared kitten - related experiences.
Well, it could be a bit rocky at first. Adrien might be in disbelief and not know how to act around Marinette. But as time goes on, he could start to see all the times Marinette has shown the same qualities as Ladybug, like her courage and kindness. This realization would slowly bring them closer. For example, he might remember all the times Marinette has stood up to bullies at school, just like Ladybug does against villains. Eventually, they would have a deeper, more meaningful relationship.
Well, it could strengthen their relationship. Adrien, as Chat Noir, has always been in a similar situation. So he can really understand what Marinette is going through. They might start to rely on each other more and share their experiences of having a double life.
It could bring them closer. Adrien seeing Marinette in this vulnerable and creative state might make him more attracted to her.
There is a possibility that it could lead to a better understanding between them. Adrien showing his interest in the Cat Noir fanfic could be a way for his dad to see a different side of him. If his dad is open - minded enough, he might start to respect Adrien's individuality more and this could improve their relationship overall.