G3 was a witness in how Ye Jian and Xia Jinyuan had gotten to where they were today. He knew how difficult it was for the two of them to get together. Hence, he hoped that their relationship could last for a long time without any hurdles.
To be honest, people like them couldn't stand any twists and turns in their relationship. If they did, they would feel suffocated.
Take himself as an example. After dating his girlfriend for a few years, he was most worried that he wouldn't be able to accompany her during festive seasons and would anger her. Hence, when he went back during the holidays, the first thing he did was to bring his girlfriend to his house and dote on her. Then, he would be filial to his parents with his girlfriend.
He didn't dare to anger his girlfriend. His girlfriend's words were even more effective than an imperial edict. As long as she spoke, he would obey immediately. He wouldn't refute it at all.
