Has he been noticably losing weight? I would buy a scale and track his weight. If he's not losing any, then don't worry. If he's losing weight, though, I would re-visit your husbandry. If he's not losing weight that's a normal fast and you'll just have to wait him out. Offer maybe once a week. Since you feed live, just buy a small enclosure for the feeder and keep it alive between offerings.
I have a male that's going on 10 months without regular feeding. I've gotten him to take after he sheds, but since those are every 2-3 months he's only had 3 or 4 meals since last September. It's frustrating, yes, but they do it. Especially males. Just double-check your temps and everything and keep offering every week. Though I haven't even been offering to mine except after he sheds because he's been staying in a 5-gram range after he poops and before he sheds again.