It's uncertain how Eric will react, but at the very least, he didn't come out laughing.
Eric, now able to choose his preferred way of life, obviously doesn't need to wear a suit at home. However, when Gao Guang arrived, Eric was dressed in a suit and even wearing a tie.
Keep in mind that it was after ten at night. If Eric wasn't about to leave for a very formal event or attend an important meeting, then he was waiting for Gao Guang.
"Long time no see, Mr. Eric, I apologize for disturbing you at this late hour."
"You should have arrived earlier indeed; I have been waiting for you for a long time, and I thought you would come to me first."
Eric replied to Gao Guang lightly. At first glance, it may seem like a retort to Gao Guang, but upon further reflection, it also sounded like a complaint that Gao Guang should have come to him instead of seeking out Simmons.
Gao Guang gestured toward Otto, saying, "My teacher."