I asked the pilots to confirm they were going around, and the answer was:
"We don't know why, but it seems the aircraft decided to go around..."
That means; we messed up but don't want to admit it.... Airplanes, not even airbus, don't decide to go around....
As for the 3 minute delay due wake... There are some very strange people flying around. I have flown with people too, who suddenly come up with very strange ideas, even worse than this example. Initialy you think they are kidding but they mean it?