Re: Beginner Question (Emergency...maybe?)
He is in a dearth that will continue until about the 2nd week of August.
It is almost 100% guaranteed they raised a queen that had emerged by the 14th day. Bees with a virgin queen will often do strange things such as appear to be swarming while she is on a mating flight. It does not matter if there is an old queen in the hive, the virgin will still fly out to mate and eventually the old queen will disappear.
There is another possibility which is that the new colony could be getting robbed. Aggressiveness is typical when a small colony is attacked. This would also explain the bee in your wife's hair. It would be worth a bit of time to ensure this is not robbing!
NW Alabama, 50 years, 20 colonies and growing, sideliner, treatment free since 2005, 14 frame square Dadant broodnest