so, Male, three years old (assuming you got him as a baby?), not eating for the last two months (my prime breeding season).... 
Has he been overly active, on the prowl? And is there another female around?
Even if not, could simply be he's ready to breed.
Have you found any sperm plug / hemipenal sheds? Looks something like this in a water bowl.....

You can see kinda how it looks not in water up the side of the bowl.
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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count (05/26/2009):
36.51 BRB
29.42 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 

