He could stop eating for up to a year with no issue at that weight, it's a male smaller more infrequent feeding especially if it's a pet are better.
Snakes are overfed in captivity and with BP when they are overfed they will fast to catch up, in the future when he resume feeding try offering rats not bigger than 75 grams every 7 to 10 days and every now and then skip a week.
You may also want to see if downsizing the enclosure for the winter will help him resume feeding (I have great success with that with my males.)