What was the last situation where some weird stuff went down and everyone acted like it was normal, and you weren’t sure if you were crazy or everyone?

While visiting some friends, two of them that are in a relationship had an argument in front of us all. The argument could have ended quickly as just a disagreement, but instead it ended in a very strange way.

It ended when the girlfriend started crying and the boyfriend started laughing at her about her crying..

The part that I didn't understand was that everyone that was there seemed to be fine with it, as if its just ok, and they even supported him while she went to another room to cry.

I was just sitting there the whole time thinking to myself, what the hell?..