One common theme is loss. Starlord has lost a lot in his life, like his mother and his relationship with his father. Fanfictions often explore how new losses, such as a teammate or a love interest, affect him deeply.
Isolation is also a prevalent theme. Starlord can be a bit of an outsider even within the Guardians. Fanfic writers like to explore how situations can make him feel even more isolated, like when he's misunderstood or when his actions have consequences that drive others away from him, which really hurts him.
Another theme is the idea of finding love in unexpected places. In the vastness of the galaxy, they find each other and the kiss is a sign of that special connection. It also often involves themes of redemption, as both characters have their own past mistakes and the love they find in each other can be seen as a form of redemption.
There's a fanfiction titled 'Hurt Starlord: A Journey of Pain'. In this, Starlord gets physically injured during a battle and has to deal with not only the physical pain but also the fear of not being able to protect his team. It shows his vulnerability in a really interesting way.
Another theme is 'redemption'. Gamora has a lot of baggage from her past with Thanos, and Starlord has his own issues. Fanfictions might explore how they help each other find redemption, either through acts of heroism or by simply being there for one another during difficult times.
One common theme could be emotional pain. Maybe Arthur has been betrayed by someone close to him, and the fanfiction explores his journey of dealing with that hurt. For example, if a friend he trusted turned out to be a traitor.
One common theme is isolation. Magnus might be isolated due to his unique powers or past traumas, which causes him pain. For example, in some fics, his immortality makes him feel alone.
One common theme is Haru's emotional isolation. Often, fanfictions in this genre show Haru feeling alone despite being surrounded by people.
Another theme is revenge. Sometimes the reason for the chase is revenge, and the hurt that comes to the chased character is a part of that revenge plot. It can make for a very dramatic story as the character tries to either escape or turn the tables.
One common theme is isolation. When Juvia is hurt, she often isolates herself, feeling that she has to deal with her pain alone. For example, in many stories, she might retreat to a secluded place after a particularly bad emotional or physical injury.
Isolation is also a common theme. When Tony is hurt, he might isolate himself from others, believing he's a burden or just not wanting to show weakness. This self - imposed isolation can then become a major part of the story as his friends try to break through and reach him.
One common theme is redemption. When Lucifer is hurt, it can be a starting point for him to seek redemption for his past wrongdoings.