WHY OH WHY???

I was dissapoint with my mother
When I heard something from her
That she don't like a type A
A type of blood were I have today

Since her blood is type O
She is the same with my bro
While me is different
Don't know what is meant

Others say it doesn't matter
well you tell me the answer?
It can be seen in their moves
Just like a dance when you grooves

Am I just a looser?
Or such a challenger?
I really don't know why
Why oh why? hope I'm just telling a lie