When the fry jump and wriggle this is not considered the free swimming phase. Only when they can swim around and maintain their position in the water are they free swimming. This usually takes 4/5 days after hatching. If the water is warmer this may happen slightly quicker. As to the female chasing the male it may be that she sees herslf as the only one capable of looking after the brood and just over protective. It is a good thing that the male retreated otherwise you may have had deaths not just a battered husband. Next spawning they may work better as a team. Good luck, Ken.