Do you think it is okay that I am disappointed about getting pajamas for my birthday?
Did you not like the gift that was given to you?
No I didn't, it is horrible!
Well, it's normal to feel disappointed about a gift that was given to you. I wish you did not tell the person that gave the gift that you did not like it. If you have given a gift to someone else and they said that they did not like it and reacted the way that you did, you would not want to get your feeling hurt, right?
I thought that if I tell her that I do not lie the gift, that she will give me a better one.
It's fine to be a little disappointed when you receive a gift that you dislike, but you should not be openly ungrateful about it. You'll hurt the person's feelings who gave you the gift and if they cared enough about you to give you one, then you shouldn't expect them to get you a new one. That's just rude.