if my wishes came true (it would've been you) (гет)

"Robin? Is this one of your girlfriends?" A teasing and sarcastic voice says from the doorway and Nancy faintly recognizes it but she isn't sure from where. She turns around fully to look and that's when her heart drops into her stomach. She recognizes him as soon as she notices his iconic hairstyle that had been a subject of her teasing for a while.
He's leaning against the doorframe to a hallway, a formidable force from her past. She watches his expression change when he takes in her face and realizes who she is. His jaw even drops a little and Nancy has to force down a laugh at the vaguely familiar astonished look on his face as his eyes roam her.
"Your roommate is Steve?" Nancy swallows.
or
robin tricks steve and nancy into being roommates in NYC to get them back together