I apologize for making you wait.
I am sorry that I make you wait.
I am sorry that I kept you waiting.
I am terribly sorry to make you wait.
I am sorry for making you wait.
I am terribly sorry for making you wait.
I am terribly sorry that I made you wait a long time.
I got tired of waiting for you.
I cannot wait for you.
I made you wait.
I made you wait.
I make you wait.
I made you wait.
I don't want to make you wait.
I am terribly sorry that I caused you trouble.
I was genuinely waiting for you.
I should have waited for you.
Do you want me to wait until you come for me?
I was waiting for you.