It's most likely just a rumor. There's no solid evidence to prove that they are in a love relationship. They are both popular in the K - pop industry, and fans might be shipping them together, but that doesn't mean there's an actual love story.
The rumor probably started from fans' fantasies. Since both Jimin and Rose are very popular and attractive, fans might have just imagined them as a couple and then the rumor spread.
A common theme in Rose and Scorpius married life fanfiction is their adventures even after getting married. They might travel to different magical places. One story could have them exploring an ancient, long - forgotten wizarding castle. During these adventures, they learn more about each other and their own magical abilities. Their marriage is also often shown as a partnership where they support each other's careers. If Rose is working on some important research in the field of magic, Scorpius is there to encourage her and help with any practical problems that come up.
Sometimes they are. Fanfiction is all about creativity and different authors have different takes. Some stories show them getting married, while others might explore different paths for their relationship.
Definitely, Teddy Lupin could be in there. He could be a cool older cousin - like figure to Rose, showing her different aspects of the wizarding world that she might not have known. Then there's Astoria Greengrass, Scorpius's mother. Her backstory and how it affects the couple's relationship can be explored. And Blaise Zabini could be a side character, perhaps involved in some of the social events that Rose and Scorpius attend as a married couple.
On the other hand, Rose's family might be a bit more hesitant. They know Scorpios is a bit of a wild card. They worry about how he will provide for Rose in the future. But as they see how much in love the two are, they gradually come around and start to support the marriage.
One popular 'Rose and Adrian married' fanfiction might be 'The Married Life of Rose and Adrian'. It could explore their daily lives together, how they handle different situations as a married couple, and the growth of their relationship.
Love and commitment are very common themes. Since they are married, the stories often explore how they stay devoted to each other in the face of various difficulties.
One popular one could be 'A New Beginning' where they start their married life on a new planet, facing all kinds of adventures together. It's full of their typical banter and sweet moments.
Fanfiction.net is also a good place to look. There are many different genres and themes of fanfictions there. Navigate to the search function and type in 'Rose and Adrian married' to see if there are any stories that match your interest.