you have a mum?!

Me: *hanging up the phone after ringing my parents' to see if my mum was there*
Tiny: you have a mum?! *angry face*
Me: yes...
Tiny: but you're my mummy, and daddy, he's, daddy is my daddy, and he's at work, and we are your kids!! *getting more worked up*
Me: yes you are...
Tiny: but you have a mum and dad too?! *verge of exploding* are you a kid?!
Me: well not any more, but I was...
Tiny: I DON'T LIKE YOU HAVING A MUM AND DAD, MUMMY!! *storms off*
Me: uh... what just happened??