Burning Blanket

To have a burning blanket.  
It is your comfort, it is your very necessity.
It allays your emotions that caterwaul  from the pit of your existence.
The burning blanket.  When you wrapped it around you, it made you warm, comforted, it took the pain away, you could sleep, which you never did by yourself.  It is your security blanket, you are a child.  It is soft, the softest in the world, the most calming in the world, it wraps itself around you with its secure arms, its grip hard but gentle, careful not to grip too hard or be too warm.
One day, the blanket grabs you.  You close your eyes and smile to yourself.  That is, until you notice it is getting hot.  It gets hotter and hotter, and then it starts to burn you.  You wonder what is going on, you don't understand, this is so unusual, so unlike your blanket, so disorienting.  The blanket is getting very hot, it is turning a different color, it burns you, it is burning your skin off.  You try to get it off but it grips tighter, hurting you.  Finally, after many burns and you have passed out on the hard floor, it leaves, but not without whipping you across the arm, a permanent scar reminding you of your burning blanket.
I have severe burns that no amount of surgery can cure.
Why did my blanket burn me?  Did I do something?