How to evaluate the poplars in One Servant and Two Masters?

I don't think the poplar in One Servant and Two Masters looks like a driver in any way, especially when it is played by Zhang Jiayi. He wears a famous brand and doesn't talk condescendingly. He and his hostess are like a couple in life. Poplar is a good man who helped her when she was most embarrassed, but he never came back. This kind of quality makes the hostess deeply like it, while the poplar itself does not strive for progress, taking it as fun.