She tears me down

I ain't afraid
Of no man here
I don't go looking for trouble
I speak my mind
I've got no fear
Tell me you understand
Say that you understand
Well if it's blood that you want
Blood you'll get
Fighting just comes kind of natural
But i lose my head
When she's in my bed
I just don't understand
'Cos she tears me down
She won't get away from my bed
I said she tears me down
Says i'm just an animal instead
I'm not amused by people i see
Telling me i've got a problem
'Cos i'm telling you
It just ain't true
Why don't you understand