Yikes anatess! Sounds scary-- glad your snake took the rat out.
To answer your questions oxy, when she was eating the rats, the rats were about 10% of her body weight. I haven't weighed her recently because I didn't want to know as she wasn't eating. I can't remember her last recorded weight--I'd have to go look it up. I'll weigh her again next time I feed her.
We did leave her alone for about ten days after she refused the rats. We kept offering every week to ten days to try to make sure she was hungry and she just wouldn't touch them.
She used to eat every seven days.
She must have been 1000+ grams when she stopped eating rats.
We defrosted in warm water and put the head under a light bulb to heat it, but we have not offered frozen in a really long time.