Nope, you're good. The bigger they are the longer it takes to pair normally. Trust me, if your female was going to kill the male (if one's not dead yet you don't have 2 females  ) then it would have done so by now. I recommend that you simply ignore the tank for a few days (more for your own stress relief than anything else).
I can't begin to express how normal that behavior is. It simply seems that you have the rare pair that takes longer to warm up to each other. 
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55gal,260 watt PC(2x65 actinic,2x65 10k daylight,8 lunar LED) 45#LR, 45#LS, 3 maxi-jet 900's on a natural wavemaker timer,phosban reactor, 5 gal fuge (built out of standard 10 gallon tank) with chaeto, grape, and feather caulerpa, sealife systems protein skimmer, wet/dry, 4 blue/green chromi, 1 skunk cleaner shrimp, 2 lyretail anthias, 1 royal gramma,1 true perc 5 mexican turbo snails, assorted dwarf blue leg hermits, astrea snails, and nerite snails | 
