One common theme is heartbreak. When there's a betrayal in the AdvanceShipping relationship, it often leads to intense heartbreak for the characters involved. They have to deal with the pain of being let down by someone they trusted.
One popular 'AdvanceShipping Betrayed' fanfiction might be 'A Broken Promise'. In this fic, the relationship between the main characters in the AdvanceShipping pairing takes a dark turn when one feels betrayed by the other's actions. It delves deep into their emotions and the consequences of that betrayal.
Well, a really frequent theme is rivalry. In high school, there's always that competitive edge. In these fanfics, the characters might compete in Pokemon battles, in school competitions related to Pokemon knowledge or training. And of course, love. The Advanceshipping aspect implies a romantic relationship, which is often explored as the characters grow up in high school. They might have their first crushes, deal with jealousy, and all those typical high - school - love things.
Adventure is another big theme. Since they are Pokémon trainers, many fanfics will have them going on new quests or facing challenges together, which in turn deepens their bond. For example, they might have to save a Pokémon species in a particular region, and during that journey, their relationship evolves.
One common theme is Serena leaving Ash for another trainer. This could be because she is lured by the other trainer's success or power. Another theme might be Serena being forced to betray Ash due to some external threat or blackmail. For example, a villainous team might threaten her friends if she doesn't side with them against Ash.
One common theme could be Naruto feeling isolated after being betrayed. He might start to question his relationships and his place in the ninja world. For example, in some fanfictions, he could withdraw from his friends in Konoha and go on a solo journey to find himself.
One common theme could be friendship broken. For example, if Percy is betrayed by his friends from Camp Half - Blood, it might explore how that shatters their once - strong bonds. Maybe they start to question their loyalty to each other.
A sense of new beginnings is also a common theme. The wedding is seen as the start of a new chapter in their relationship. So, the fanfiction might explore how the couple is looking forward to building a life together, perhaps moving to a new place or starting a new family. There could be mentions of their future plans, dreams, and how they will support each other in achieving those goals. It gives the story an optimistic and hopeful feel.
There can also be themes of facing challenges together. For example, they might have to deal with unexpected difficulties during the pregnancy, like May having a difficult time with morning sickness and Ash trying to support her. This shows the strength of their relationship in the fanfiction. Also, sometimes there are themes related to the future of their family, such as what kind of parents they will be and how they will raise their child.
In such fanfictions, a prevalent theme is broken trust. Ash and Iris could have been on a journey together when suddenly Ash meets someone new who convinces him to change his path, leaving Iris behind. This would make Iris feel betrayed. Another theme could be related to secrets. If Ash has been hiding something important about his Pokemon training methods from Iris, and she finds out in a bad way, it can create a sense of betrayal. Also, the theme of jealousy can come up. If Ash gets more attention or praise from other trainers for his Pokemon, Iris might feel left out and betrayed, thinking Ash doesn't care about her feelings or achievements.
Well, in these fanfictions, a frequent theme is trust issues. After being betrayed, Fem Ash will surely struggle with trusting others again. Growth is also a theme. She has to grow stronger, both mentally and physically, to face the situation. And then there's the theme of isolation. Sometimes, she might isolate herself from others because of the pain of betrayal.