Concinnus do this at various times throughout the year without actually mating. Might want to consider that might be what's happening here too. And usually when a mating occurs, they stop courting and everything goes back to normal. Yours probably havent actually mated if their still behaving like this.

Males with sex on their minds aren't the least bit concerned about food. Heck, one time I was sitting by the Columbia river and a huge female slithered right up to my feet, and stopped, completely oblivious. A few seconds later, two males that were chasing her caught up to her. All these snakes were not paying any attention to me at all. I even tried to "shoo" them away. They didn't budge. My point is, they are focused on sex and nothing else matters to them, not even food.