It was Katma and Johns' wedding day and Hal got himself killed/faked his death. Likely the latter because I just have this image of him doing it to get out of making an appearance. The GLs decide to honor Hal much to Katmas' annoyance . She decides "screw it, he's not going to upstage me on my big day" and bravely tries to pretend it's a normal wedding while walking through the graveyard.
Arisa decides to end her life only to discover she doesn't know anything about earth based weapons. Later on she would be embarrassed to learn she actually stopped herself from getting sprayed with a water gun. Katma wasn't pleased with being blocked and the rest agreed to ignore the sobbing girl. Guy naturally found the whole thing hilarious especially since he was the only one that knew Hal was alive and how pissed everyone would be once they knew the truth.