Maybe they are testing your boundaries and whether you can say "no" when asked to do things that you are not comfortable doing?

After all, if you thought you might have enjoyed dancing with him after the 2 ladies' request, that might have been fine in your own heart to agree to their request. But would you say "yes" if (hypothetically) he was seen groping and grabbing every girl who danced with him? As I said, maybe it was a test of your boundaries and your ability to say "no".

But if it was a case of "Dance with him or you're out", I would say that is manipulation and hazing, because you are being forced to do something that you have no choice in and your potential membership is being dangled in front of you like a carrot.