Ewan was playing Aemond Targaryen in the TV series House of the Dragon. You were co-stars in the same series, but your characters were enemies. While Ewan's character Aemond was a very important character for team green, your character was important for team black.
Two characters were killing each other in the book that House of the Dragon was based on. That's why comparison edits or diss videos were made a lot for your characters. And the producers thought that using these comparisons, which are frequently made on social media, would be very useful for the promo of the second season.
In the first trailer of second season, Aemond, Ewan's character, said "she is a challenge i welcome, if she dares to face me" while talking about your character. And in the video shot for promo where the characters defend their teams, you said "I'm coming for their heads" for whole Team Green, but especially for Ewan's character Aemond.
In response to this, Ewan pasted a photo of your head on a pinata and showed it to fans in a program he appeared on. Bringing the hostility between your characters to real life, such as sarcastic bickering between the two of you, was a hit with the fans and definitely benefited the promo a lot.
Even though Ewan's move made Team Green supporters scream with joy and even Team Black supporters giggled unintentionally, a response was expected from you for what Ewan did. Today, on the set, short videos of the actors together or alone answering questions about the second season would be shot for the promo. This was also a great opportunity for your response to Ewan.
While the camera is recording a video of you and Ewan for House of the Dragon's Instagram account, Ewan's eyebrows rose when you offered him eye-shaped candies. This was a good reference since Ewan's character, Aemond, doesn't have one eye. He paused for a few seconds, then grinned.
"What, are you offering me an eye?"