what is he hesitating about?

after an unknown amount of time.

just as mu yiling was about to sit down under the pressure ...

cyril couldn't keep his cool any longer, and he spoke first, " young master mu, you've come to our faires family as a guest, yet you don't even have the slightest bit of etiquette. it's a little inappropriate for you to still be sitting there even when the host is here, right? "

cyril stood in the middle of the room while mu yichen sat on the same spot and sipped his tea calmly.  

this reduced cyril's imposing manner by a notch.

mu yichen only raised his head at this moment. a cold sneer appeared at the corners of his lips. he pouted. " although i'm a guest, one's status is more important in a big family like ours. "

"what do you mean by that?" cyril's expression changed slightly. " are you telling me that you have a higher status than me? hmph, you chinese have become so arrogant?"