Losing a friendship could make her cry. For example, if Rainbow Dash suddenly stopped being friends with her because of a silly argument, Twilight would be heartbroken and cry. She values her friendships highly.
A likely candidate could be Discord. He is known for causing chaos and mischief. He might pretend to befriend Twilight Sparkle only to betray her at a crucial moment. Another possibility is Trixie. Trixie has been jealous of Twilight in the past and could betray her out of envy.
Flash Sentry could be a likely groom. He has shown an interest in Twilight in the past and they have had some interactions that could lead to a romantic relationship. Another option could be a completely new character, perhaps a powerful wizard or a prince from a far - off land who Twilight meets during one of her adventures and falls in love with.
She could marry Spike. They have a very special bond throughout the series. Spike has always been there for Twilight, and in fanfiction, this could develop into a romantic relationship leading to marriage. They already have a deep connection, and Spike's loyalty and Twilight's intelligence could make for a great couple.
It could be a pony who is extremely extroverted if Twilight is introverted. Someone who loves chaos and spontaneity instead of Twilight's love for order and planning.
The plot might involve Twilight Sparkle seeing Scootaloo's loneliness or lack of confidence. So, Twilight decides to adopt her in a sense of taking her under her wing. They could then explore different aspects of pony life. For example, Twilight could introduce Scootaloo to her study of magic and ancient pony lore, which Scootaloo might find really fascinating and it could boost her self - esteem.
One possible reason could be that she feels overwhelmed by her responsibilities. In the world of Equestria, Twilight has a lot on her plate, like studying magic, taking care of Spike, and helping her friends. In fanfiction, the writer might explore the idea that she just needs a break from it all and runs away to find some peace.
One possible storyline could be that Twilight Sparkle gives birth to a magical foal with unique powers. Maybe the foal inherits Twilight's love for knowledge and has an instant connection to the magic of Equestria. The story could then focus on Twilight raising the foal and teaching it about friendship and magic.
One possible plot could be that Twilight Sparkle discovers her true heritage as Luna's daughter. This revelation could send her on a journey of self - discovery, trying to understand how she fits into the world with this new identity. She might face challenges from those who don't believe her or are threatened by her new status.
Maybe her boyfriend is an ordinary pony at first glance but has a hidden talent for understanding complex magical artifacts. Twilight discovers this when they both stumble upon an ancient relic. They start to work together to unlock its secrets, and in the process, their relationship blossoms. They might face some opposition from other ponies who think Twilight should focus solely on her studies, but they prove that love and learning can go hand in hand.
It could be Discord. He loves causing chaos and kidnapping Twilight Sparkle would be a great way to disrupt the harmony in Equestria. He might do it just for fun or to see how Twilight's friends would react.