Klondike Bars and Lover Scars

Cold on the inside and sweetness on out,
I nibble away at your sides.
Like a Reese's there is no wrong way,
devour till hunger's head hides.

Yet hunger's head is a fool in a small white room,
a room with one closet door.
There is no place to sneak or to be unseen,
nob twist to find X on floor.

Finished now, my belly does moan,
"please give me another fill!"
But I can't because alas, I destroyed my Bar,
her out and in, I did kill.