Well, it could be that in the fanfic, Harry realizes the full extent of the destruction the war has caused not just to people but also to the wizarding world as a whole. He might cry for the broken relationships, the damaged places, and the future that seems so uncertain now. All the trauma and stress that he bottled up during the war comes pouring out in tears.
He could cry because he witnesses Fleur's selfless act. For example, Fleur sacrifices herself to save Harry or his friends. Harry, being a kind - hearted person, would be deeply touched and might cry at her noble gesture.
One reason is to explore different post - war scenarios. The books end with victory, but there are many possible ways the wizarding world could have treated Harry. Ignoring him is a very different take from the hero - worship that might be expected.
Maybe he's being bullied by Snape. Snape has always been tough on Harry in potions class. His harsh words and unfair treatment could easily make Harry feel frustrated and cry.
He might become very self - reliant. Since he has no one to depend on, he learns to take care of himself in every aspect, like finding his own place to live and getting food. He could also start to study magic more independently, exploring areas that were previously forbidden or not well - known.
One possible reason could be that Harry was away a lot after the war, dealing with the aftermath and his newfound responsibilities. Ginny might have felt neglected. Maybe she expected more time together, but Harry was constantly occupied with things like helping to rebuild Hogwarts or being involved in the Ministry's new initiatives.
He might cry because of loss. In the story, he could lose a friend or a mentor. Such a loss can be extremely painful and cause even the strongest characters to break down. Captain Marvel, despite his power, is still human at heart in many interpretations, and the pain of loss can be overwhelming.
He might become more responsible. As a lord, he has to think about the greater good of his domain. So he may be less impulsive and more calculated in his actions.
Harry might cry in fanfiction due to the overwhelming pressure he faces. He has the weight of the wizarding world on his shoulders. Saving everyone from Voldemort is no easy task, and the stress could make him break down in tears.
One common theme is healing. Harry has been through a lot during the war, so in these fanfics, he often has to deal with his emotional and physical scars. Another theme is rebuilding. The wizarding world is usually in shambles after the war, and Harry is involved in putting it back together.
It could be due to a graphics driver issue. Try updating your graphics driver to the latest version. Sometimes, an outdated driver can cause compatibility problems with the game and lead to crashes.