It's the day of the wedding, and Mr. Harker is ready to go. He's not leaving because he's tired of Harker's constant nagging, but because he wants to finish off the wedding. He doesn't want to be a burden to Harker, and he wants Harker to be able to enjoy his life without worrying about his future. He tells Harker not to worry, though, because Harker will be there to help him.
It's the day of the wedding, and Mr. Harker is ready to go. He's not leaving because he's tired of Harker's constant nagging, but because he wants to finish off the wedding. He doesn't want to be a burden to Harker, and he wants Harker to be able to enjoy his life without worrying about his future. He tells Harker not to worry, though, because Harker will be there to help him.