The event was so busy, despite Schumer's performance being a surprise one, that the club was forced to come up with somewhere for Hanisch to sit to watch his girl in action.
"It was sold out, so the club pulled out a chair for Ben. He sat in a doorway," the insider added. Schumer has previously laughed off the public interest in her new dating developments after poking fun at her single status throughout 2015. WATCH: Amy Schumer wishes trolls a Happy 2016