Board Thread:Character Discussion/@comment-28162607-20160506212909/@comment-24674051-20160513164036

And actually, little Robyn is not a step-daughter. Robin and Regina were never married so there really is no relationship on that part. Robyn is simply Regina's neice. (and if she's like any of the other Mills women, she's destined to become a powerful sorceress in her own right).

As for the connection between Emma and Regina and their happines, I see the point made, but I honestly don't think that there is any real connection. Season 1 they were at odds with each other, so they were always going to be opposite then. But now, if you go by some of the articles out there, they are best friends (and based on what I've seen on the show, I think that is a fair statement). Emma cares for Regina and her happiness. And going back to the Frozen arc, Emma vowed to Regina that she would fight so that Regina could get her Happy Ending.