One idea could be that they find a secret place in the opera house where they can be alone and express their love. Maybe they start with a simple dance and then their passion grows.
Well, a possible plot could be that Erik has a chance to redeem himself in Christine's eyes. Maybe he saves her from some great danger, like a fire in the opera house or from a villain who wants to harm her for her beauty and talent. This selfless act could make Christine see him in a new light and they could gradually develop a deeper, more loving relationship. Also, they could have a secret correspondence over a long period, sharing their thoughts and feelings, which could eventually lead to them reuniting.
One idea could be that Erik takes Christine on a journey through his secret underground world, showing her all the hidden wonders he has created. This could deepen their bond and make Christine see him in a new light.
Some fanfictions might focus on Christine's growth as a character in relation to Erik. She could learn more about music and herself through her interactions with him. She might also gain confidence and be able to stand up for what she wants, whether it's to stay with Erik or to pursue her own independent path in the music world.
A unique way to develop their relationship could be through a shared dream or vision. They both see a future together that is full of love and acceptance. This shared experience makes them more determined to be together. Christine starts to see past Erik's physical appearance and focuses on the beauty of his soul. They then start to explore their love in a more physical way, like holding hands and then gradually becoming more affectionate.
A simple fanfiction could be that Erik writes a beautiful song for Christine. When she hears it, she is deeply moved. She seeks him out to thank him. This encounter starts a series of meetings where they slowly fall in love. Their love is based on mutual respect for each other's talents.
Fanfiction.net could also be a place to look. It has a large collection of fan - created works. But again, it can be a bit of a hunt. Browse through the relevant categories, such as those related to the story or musical that Erik and Christine are from. Remember to be patient while searching.
The relationship between Erik and Christine should be developed in a believable way. It can't be rushed or forced. There should be a build - up, with their emotions and interactions evolving gradually. Also, the setting and the way it's described can add to the overall atmosphere of the fanfic, making it more immersive.
One possible plot could be that Erik, being the complex and often misunderstood character, kidnaps Christine out of his obsessive love for her. He might take her to his lair, thinking he can protect her from the outside world which he believes is full of people who don't truly appreciate her talent. Then Christine could struggle between her fear of Erik and her understanding of his tortured soul.
One possible plot could be that Erik and Christine's relationship has developed secretly. When Christine discovers she is pregnant, she is initially scared but then realizes she wants to keep the baby. Erik, despite his insecurities, vows to protect Christine and their unborn child. They face challenges from society as their relationship was always a bit of a scandal, but they stand strong together.
Maybe in the fanfiction, the Phantom uses his musical talents not just for his own self - expression but to create a magical realm where Christine can explore different musical universes. It would be a journey of musical discovery for her.