The rat was defintely hungry, those are not defensive wounds seeing as the snake did not try to eat him. Those are chew holes due to hunger.
On a side note, the scarring is the least of my worries. Idc if he scars because he will live out the rest of his days in my collection and even though he won't be as good looking as he once was, he'll still be very well taken care of. My primary concern is getting the wounds to close and not get them infected. My second concern is getting him to eat again, hopefully he isn't traumatized.. After I get those 2 taken care of, then I will hope he looks purty again, but right now I'm just worried about his health. I have already had to cut the bit of his tail that was hanging on by a thread, there was no saving it. It was literally hanging on by a thread so I clipped it.