Fighting Clowns or Flirting??

I have a tank setup that has 2 flase perculas in there and they have been together for about a month and half.... this morning I brought the tank to work and have had more time to closely watch their behavior... There is definently a female established and she keeps picking on the smaller one... No nipped fins or anything, but I'm wondering if this is fighting or what? Also the smaller one sometimes hides behind the heater for a while....


Any thoughts?
 
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