My guy Stan (also about a year and a half) was doing the same thing. Acting hungry like crazy but then acting like the (f/t) prey was going to kill him.

I guess its just that time of the year - he may not be being bred but he sure thinks he might get a chance!

Also - he started this when I went up in prey size - so maybe if you do like some other suggested and feed his less often he'll get back on the horse so to speak.

And don't worry - Stan took food this week, even after acting funny about it for a couple feedings so I'm sure your guy will eat when he is hungry.