Quoting mother of 2:" she has 3 kids and when i see her, her kids all miss be having n being mean to one another and she ... [snip!] ... that emma nd izaya thts my lils boys name will be the same way but i really dont belive that becuse emmas is really good "
Just ignore her. She cannot possibly predict how your child will behave towards her little brother. Those are from her experiences... different family different experiences. Like a friend of mines... her son is really rambunctious and she's always asking how I get my children to behave and I tell her all the time I don't "get" them to behave they just do. Every child is different and there's no predicting the future. Best of luck mama!
P.S. Emma's such a pretty name. That's my SO's mom's name. Cute!