There was a moment when Zoro changed when you and him got to know each other more, since the two of you now talked more and spent more time together, it's as if you had already met, but every time you were with another man or person , he used to interrupt the conversation or just look from afar, watching you while he seemed to be hiding unknown feelings for you.

It was a night of rain and thunder, so you were a little scared by the strong thunder that was stalking the ship, so Zoro noticed this and did not hesitate to hug you gently as if to calm you down.

"Don't worry... it's just thunder, scary." Zoro kept his gaze serious and indifferent, but it was soft and calm for you, and that's how you stayed semi-embraced during the night, but you were still afraid, so Zoro hugged you tighter... and you felt like something touched your head.

maybe Zoro kissed your head?