The two butterflies on this yarrow flower head are Blue Coppers (Lycaena heteronea, not to be confused with Blues, which are a different but very similar-looking group of butterflies). The one with its wings spread, showing off the blue color, is a male, and the one in the back is a female.
I watched the male chase the female back and forth across the flower for about a minute. She didn’t seem to want anything to do with him.
“Leave me alone…”
“Let me buy you a drink…”
“No, really, I have to go home and wash my hair…”
“Whew, that creeper finally left.”
I know this is probably the most blatantly anthropomorphic post I’ve written in a long time, but who could resist imagining bad butterfly pick-up lines.