What does my mom mean by this???0?

Ok so i jad friends over and ther mom came to get them and she was waiting in the car. So my friendswer getting ther shoes on and they told me to hurry and ask my mom if i could stay the night with them. So i aksed her and she looked @ me like i was crazy. And then when my friendz left she said " no i wont let u spend the nite if u front me like that you could hav asked when they left or pulled me a side !!!!" and she was mad. What did she mean?? Then a couple days b4 i was @ the same friemds house and she said "u want me to call ur mom and ask if u can stay the nite" and i said yah. So she called my mom said no and then @ home she got mad and said i could never spend the nite if my friends asked her not me. What did she mean????