Su Ming had not come to eat with Harley, nor had he disguised himself as Batwoman to tease Penguin. He had originally come because he was worried the Goddess of Death might refuse to leave, so he had planned to negotiate terms with her.
But clearly, he had overthought it. As long as Wade was by her side, Death was incredibly easy to talk to. Apparently, no matter how difficult a woman was, once her desires had been satisfied, she became gentle and understanding.
After having Strangle activate the Tachyon Accelerator, Su Ming dropped into a booth. Once he had sent off Penguin, who was worried about getting beaten up, he spoke while wearing Batwoman's face.
"Thanos was just sent back to 40K by me. Didn't he intercept Wade?"
"Almost." Harley smiled as she scooted over beside Diana and pressed herself against the female warrior. Holding up two fingers with only a tiny gap between them, she said with a grin, "If Deadpool had left thirty seconds later, you wouldn't be able to see the Iceberg Lounge now. We'd have no idea how many bodies we'd be collecting tonight."
"Heh, no, we wouldn't. Have you ever seen me collect bodies for anyone?" Batwoman gave a humorless laugh, the movement of his facial muscles completely out of sync with his voice. "If Thanos had really gone all out, every ordinary person here would have been pounded into pulp. And I didn't bring a spoon."
"Hehehe, I like that joke." Harley lay across Diana's lap. She did not really know anything about Thanos; she had merely heard the Adjutant mention someone like him. But the joke was still funny. "Does Earth-0 still have enemies? Let's go kill a few for fun. I want to see what collecting bodies with a spoon looks