['I share a birthday with my cousin and sometimes as a kid I would get envious when we would get different presents of the same gift. We would get different colors and for some reason I would always want the same as her', 'I can understand that. Was there a reason one color was chosen for her and another for you?', "No idea. But you know when you're kids- she would get different barbies too and I was always envious. Seems trivial now but as a kid- I hated it"]
Sounds like you wanted to be the same as your cousin and not set apart. It may seem trivial now, but I know it wasn't trivial to you at the time.
When I was a kid- I was very jealous when my cousin would get different presents then me on our birthday.