One common theme is friendship. Their bond is often explored, like how they support each other through tough times. For example, in many fanfictions, when one of them is facing a personal crisis, the other is there to offer help and advice.
The theme of second chances also frequently appears. Maybe they had a missed opportunity in the past, but through various plot twists in the fanfic, they are given another chance to explore their relationship. It could be due to a change in circumstances or a newfound understanding between them.
Tristan is a character in American Horror Story. He is often involved in the complex and often dark storylines of the show. He has his own unique personality and story arc within the series.
Well, the length of the Tristan Strong graphic novel isn't set in stone. It could be anywhere from a couple hundred to several hundred pages, depending on how the story unfolds and the publisher's layout.
I have no definite knowledge of which Indian story inspired it. It might require some in-depth research into Indian literature and comparing the commonalities to figure it out.