[It's maybe a testament to the fact she actually knows him, as much as one can know someone like Sebastian, that she doesn't really expect him to call back or wave-- instead she waits patiently, with a small smile, until he's closer.]
It wasn't long at all. In fact, I was prepared to wait for longer... though I probably shouldn't have. [It's you, after all, and Sebastian is nothing if not punctual and reliable.]
I'm all right, thank you. I'm only sorry to bother you like this.