Children of Addicted Parents and People

Hello, I Haven't Been On This For a While,
Luckily i haven't needed to, but again i find myself back were i started,
my mum got back about an hour ago and for that time i've heard from three stories up i can hear her whining and moaning to herself, i cant make out completely what she's saying but i know she has a friend who she always go's to see and normally comes back drunk and occasionally on drugs :(
but this night she fallen out with her friend who is also in the same state as mum and keeps ringing the house phone and i picked it up and all i could hear is crying and shouting and swearing and it upsets me,
my mum knows that i know when she go's to see this friend she's going to come back drunk and more, but she still insists on going, it seems she doesn't care what i think of her
:(