Harry and hermione chemistry
I think Hermione in this scene was in an emotional state—up to the point where her hidden feelings for Harry came out through her extreme concern for him. And I swear to you that if Cedric hadn’t arrived, Hermione would have broken down and confessed to Harry: “I’m worried for your safety because I love you.”
I also think Harry has hidden feelings for Hermione. In this scene, when he mentions Krum’s name, maybe it’s a sign of jealousy—something that triggers Hermione’s agitation. And I even believe Harry was happy and relieved when Hermione admitted that, between her and Krum, nothing much was going on, and that Krum was more physical—he just kept looking at her.
I believe that in the Harry Potter films, up to Goblet of Fire, they show how the relationship between Hermione and Harry develops—like a relationship from childhood to adolescence between a girl and a boy.
In Harry Potter and the Sorcerer’s Stone, we see the trio working together, with several moments where Harry and Hermione protect each other multiple times. Harry sits next to Hermione in the Great Hall. Hermione stops Harry from flying on his broom to go after Malfoy. Harry remembers Hermione, and he takes the risk of jumping onto the troll to save her. Hermione saves Harry during Quidditch by burning Professor Quirrell’s/Professor Rogue’s robe. Hermione tells Harry she’s a great wizard, and Harry says something like she’s more powerful than he is, etc.
In Chamber of Secrets, we see Hermione and Harry happy to find each other again, and Hermione adjusts her glasses. Harry strokes Hermione’s hand while she’s petrified. Harry sits on the edge of Hermione’s bed, between talking to her and Hermione—Harry brings a flower for Hermione and then sits on her bed again while continuing to stroke her hand. Hermione hugs Harry during their reunion in the common room at the end.
In Prisoner of Azkaban, at the beginning we’re shown two children dancing on the Dursleys’ television, and then Harry goes up to his room, where he looks at the photo of his mother and father dancing. Could it be a similarity between two romantic parents and two in-love children (Harry and Hermione)?
Harry wakes up and sees Hermione kneeling close to his head, carefully keeping hold of his glasses.
Hermione gently prevents Harry from fighting Malfoy. Harry sits almost all the time with Hermione close to him—whether in the common room or in the classroom. Hermione encourages Harry during Quidditch and, for the first time, sits on his bed and carefully keeps her glasses after the last one falls following the attack of the Dementors. Hermione and Harry constantly touch each other in an effort to save Ron. Hermione steps in in front of him to stop Sirius from killing him. The time-travel scene, where Hermione and Harry keep touching each other like lovers who have passed beyond emotional interactions into instinctive physical contact: Hermione holds Harry’s arm while they search for the werewolf together. Harry protects Hermione from the werewolf, and afterward they touch each other mutually and physically while leaning against the tree in the forest. Hermione holds Harry very tightly—gripping him—while the two of them fly away on the hippogriff.
In Goblet of Fire, we see Harry and Hermione protecting each other from Death Eaters and the chaos caused during the World Cup. Hermione hugs Harry in the Champions’ tent and clings to him despite the Gazette’s suspicion and the arrival of Barty Crouch Jr., Dumbledore, and the others. Hermione never stops encouraging Harry during the first task. Hermione and Harry look at each other during the ball. Hermione speaks to Harry with emotion and worry almost at the edge of breaking down, and they keep giving each other long, lingering looks. Hermione takes care of Harry and kisses him on the head during the second task. At the end, Harry consoles Hermione.
We can see that their relationship evolves as the films progress—starting with emotional interactions, then protecting each other mutually, and finally moving into physical interactions.