My guess is mating season. I just went through the same thing with Rufus. He ate one mouse on Feb. 10th, and didn't eat again until last Saturday (9 weeks without food). He was fine though. Didn't lose any weight, still rambunctious as ever. He finally ate last Saturday.
I'm sure Loopy is fine. The part I hate is throwing out all those mice every time I tried to feed and didn't. I think I tossed out about 5 or 6 mice during that time. (We're on a 10 day feeding schedule...... when he's eating, LOL).
I had this same thing happen last year too, and Rufus was about the same age as Loopy. I think it can start in males around the 2nd year, for sure by the 3rd year.
As long as they aren't losing weight or acting sickly, don't worry about it. I've actually heard of a corn snake going 5 months without food, and then resumed eating again and was just fine.
By the way, Loopy looks handsome for sure.