@Jupiter_frog I hope you're doing alright by now, like @Charlotte_da_weirdo said, everyone has different coping strategies, here in Canada our class was watching a news live stream, and let me tell you, that wasn't a serious class. If your friend can't accept the fact that's that's how you cope with an overwhelming situation, they should be the one to apologize. But then again, the joke might have made them feel uncomfortable or smth, so I guess its both of your responsibilities to apologize to each other.