PS. Nealfire wasn’t the only one in the SF relationship who was being evasive with his true feelings up until that final moment, and IMO it’s perfectly in character for Emma to only reveal her true feelings in a dire moment.
She didn’t express her maternal love for Henry until he was lying there apparently dying. Does that mean she wasn’t genuine when she expressed that love? She didn’t call Snow and Charming, “mom and dad” until that moment when they thought they were all gonna die. Does that mean she doesn’t have genuine love for them as her parents? The situation wherein she admitted her love for Nealfire is the same. So if her feelings in the other two instances were genuine, (and I’d say it’s probably universally believed that they were), then it stands to reason that her feelings of love for Nealfire are also genuine.