Well, I think it's extremely kind and thoughtful of him.
5 seconds sound clip from the The Philadelphia Story movie soundboard.
You can hear this line at 01:45:49 in the Blu-ray version of the movie.
Quote context
[...]
- You forgot your hat, Miss Tracy. And you look lovely, Miss Tracy. All our very best wishes.
- Dexter, I do wish you'd let me know when you invite people to Tracy's weddings.
- Why? What happened, darling?
- A Mr. Sidney Kidd is here. He says he knows you.
- Sidney Kidd is here, himself?
- What else did Mr. Sidney Kidd have to say?
- Mr. Sidney Kidd's presence here makes the marriage of national importance.
- Well, I think it's extremely kind and thoughtful of him.
- Come on, Tracy. It must be late. Let's let bygones be bygones. What do you say?
- Well, if that's the way you want it.
- All right. Possibly it's just as well.
- Yes, I thought you'd finally come to that conclusion.
[...]