Are you not Lord Fleetwood's friend?
Lady Arpington is not so very, very prominent in the list with you and me.

Besides, I don't think she has come to town yet.

She generally sees out the end of the hunting season.

Leave the letter to me: it shall go.
You, with your keen observation missing nothing, have seen that my uncle has not his whole judgement at present.

There are two sides to a case.
Lord Fleetwood's friend will know that it would be unfair to offer him up to his enemies while he is absent.