I would say it is very possible they have begun the mating rituals.
I have two in a 10G tank. (I am preparing to move them to a 20G as soon as the inhabitants of the 20G move to the 29G I am cycling.) They began flaring and coloring almost immediately, and the female has been bending and twitching at the male.
After nearly a month, I have not seen any fry, and I have not looked inside the clay pot for eggs, although she has closed herself in the cave once. I know that eventually there will be fry in the tank.
I've got a few questions for you, if you don't mind.
1. What size tank do you have the pair in? (I'm just wondering, as I've always read that 20G is the min.)
2. What sort of filtration are you using? (I'm using a foam filter with no carbon in the 10G, but I plan on using the AquaClear 50 in the 20G until there are fry, at which point I'll use the foam filter again.)
3. Do you have any tips on raising those youngun's? Do you separate them from the adults, and if so, when?
I'm interested in some feedback from you and hearing how your pair make out.
Ken