Emily and Baby "Abby"

Emily loves her new sister. I have been pleasantly surprised at both of my kids love and tolerance for Addy. They both love their mom, almost too much at times, and I thought they would have a hard time sharing. But they don't panic when she cries, they just look for a pacifier to put in her mouth. If that doesn't calm her, they come tell me that Addy wants me.
Emily in particular loves to hold Addy, lay down by her, talk to her, and sing to her. She also loves to pretend with her own babies and treats them just like a real baby.
The only thing is Emily insists on calling her Baby Abby. Chad tries and tries to get her to say Addy, which she does to appease him, but then she goes back to calling her Abby. My mom thinks maybe we misnamed her and Emily knows she should really be called Abby!
Mostly we are happy that they all get along, at least until Addy wants to borrow Emily's clothes!