Robin was convinced that Nancy was who Steve had been looking for in all those other girls. She'd even talked with Nancy about it before they found Eddie at Skull Rock. She wanted her friends to be happy, and they had been eyeing each other and dancing around things the whole break.
Now she was under Vecna's power, and all Robin could think was: Nancy seemed really pleased when Robin said they were friends. She'd even asked her if they were. She'd seen that tiny smile when Robin said yes. Robin didn't have a lot of friends these days, but she'd never needed a lot of friends. Just real friends that she could be herself with.
And now Nancy was....
"Steve?" Robin put her hand on his shoulder. "We have to keep looking, but screaming isn't going to help. She won't be able to hear us, and she won't be able to reply. So we should keep looking."