I've been there also bro. If you had a few movies, and they were big, then you can eaisly burn that much BW. If you talk to your host, and they are cool, maybe they will work out something for a lower rate this month to cover their cost, and to help you ??..just a thought.
Also, maybe some scum saw the gallery on the hun and put it on their site or sites also?..so your not just getting hun traffic, but traffic from multiple places. If it's not converting, then hahahahaha to the hun to remove it, and you should take it down asap to stop getting boned on Bandwidth.