I just recently had a male in with a female that showed no interest for 2 days. On the third day, when I went to seperate them, he was breeding her. As a rule, I generally leave males in with females for three days (unless he breeds the first day). It is hard to tell from a still photo if he is courting, or if they just happen to be fighting for a good spot in the cage (i.e. trying to thermoregulate and happen to need the same temp at the same time). However, I would vte for leaving him in for another 24 hours and see what happens.