Power dynamics is another theme. Harry is often seen as the hero, and Draco as the 'bad guy' in some sense. When Harry uses his power or influence in a way that affects Draco negatively, it can result in Draco crying. This could be in a social setting, like getting Draco ostracized, or in a magical duel where Harry outmaneuvers Draco and makes him feel powerless and humiliated.
One common theme is rivalry. Since Harry and Draco are often at odds in the original story, in these fanfics, the rivalry can be pushed to the point where Draco is so frustrated or defeated by Harry that he cries. Another theme is pride. Draco has a lot of pride, and when Harry shatters it in some way, it can lead to tears. For example, if Harry is better at something Draco values, like magic or popularity.
One common theme is the struggle with identity. Draco, being from a traditional pure - blood family, his obsession with Harry, who represents a different set of values, challenges his own identity. Another theme is redemption. His obsession can sometimes lead to him trying to redeem himself in Harry's eyes.
One common theme is redemption. Draco often has to face his past actions and find a way to be worthy of Harry's love. Another theme is secrecy. Since their relationship might not be accepted in the wizarding world, they have to keep it a secret, which adds a lot of tension to the story.
Redemption is also often seen. Harry, in the role of a slave, might be in a position where he has to 'forgive' Draco for past wrongs, and Draco may be on a journey to redeem himself through his relationship with Harry. It adds depth to their relationship.
Maybe Draco says some really mean and hurtful words to Harry. For example, he might make fun of Harry's family situation, like his parents' death or his relationship with the Dursleys. Words like that can be really cutting and could easily make Harry cry.
Another common theme is adventure. Fanfic writers often send them on wild adventures, whether it's exploring haunted places or traveling to fictional lands. It makes for exciting stories as both characters are quite adaptable and their reactions can be really interesting.
One common theme is redemption. Draco, having the Dark Mark, may be on a path of redemption which Harry can influence. Another is the power struggle. The Dark Mark represents dark magic power, and their relationship might be affected by this power dynamic.
Another theme is the idea of acceptance. Harry, being a neko, is different from the normal wizards in the 'Harry Potter' universe. Draco has to come to terms with this difference and accept Harry for who he is. This theme of acceptance often plays a big role in these fanfics.
In the fanfiction 'The Lost Friendship', Harry makes Draco cry when he chooses his other friends over Draco in a crucial moment. Draco had always secretly hoped for a real friendship with Harry, and this rejection is too much for him. Also, 'The Harsh Truth' is a fic where Harry, in an attempt to make Draco see the error of his ways, tells him some brutally honest things that make Draco realize his own insecurities and he ends up crying.
One common theme is the exploration of power dynamics. When Draco bites Harry, it can represent a shift in power, either Draco asserting himself in a new way or Harry having to deal with a new vulnerability. Another theme is the idea of forbidden love. The biting could be seen as a very physical and somewhat violent act that still has an undercurrent of attraction between them. It's like they're breaking the rules of their normal relationship in Hogwarts.
At first, it would become more strained. Harry would likely be angry and hurt by Draco's actions that made him cry, so he might avoid Draco even more than before. He might also be more on guard around Draco, not trusting him at all.