To be honest the ending was a cliffhanger, but i really understand the situation.
There are times that we cant get what we want.
Just for example the person we like or having a crush for a long time.
We can tell that we like them and we can pursue them.
Still its up to them to give us a yes or no.
Just like the secretary, he is not ready to have a partner because he is still scared to have one.
Maybe he likes the CEO but he is just afraid to admit because he was still scared to engage his time and effort for a new relationship
As for the CEO, i get that he is still lack of feelings because he grew up being neglected by his family.
Thats the reason why he become cold towards other people.