The Clown Prince of Crime
Super Freak
The problem with the "I thought she was with you" line for me was that it seems to repeating the mistake of Man of Steel. How many people just died in that instant, and they're cracking jokes?
But they're not really telling jokes like Tony Stark. Superman is asking him a question and Batman gives him a serious answer, it's only supposed to be funny to the audience...but not in the story. Also, we don't know that anyone died...because we haven't see the film yet