Snow is not the same person who jumped through the portal after Emma. She's learned that Emma is a grown woman with her own child. Remember the portal came just a short time after they were united when the curse broke.
That is a good point. Emma had a hard time in the Enchanted Forest (and part of the reason was her pride, which is a different topic). She needed Snow to survive and escape. But it's Charming who would be in danger alone in Neverland. And yet, if they had just added one line of dialogue where Snow and Charming included Emma in their discussion, it would have made it more realistic. Instead, their discussion only involved each other.
Responding in the relationships thread to the other points.
Edited by Rumsy4, Feb 14, 2014 @ 4:53 PM.