^
It would be one thing if they just made the event and played it for comedy, but with the way Estelle dwells on it I wouldn't even call it subtext.
"Don't you think the two of us look like a mom and dad? A happy little couple!"
"Huh? What are you talking about?"
"If we... if we don't end up finding his mother, we should adopt him and raise him together..."
"You're crazy, Estelle. Kid... Don't you go forgetting us once the morning comes."