You have only yourself to thank for it.
I know what took place between you and him at the inn.

I have had a lawyer's advice.

You are Arnold Brinkworth's wife.

I wish you joy, and good-by forever." Address those lines: "To Mrs.Arnold Brinkworth;" instruct the messenger to leave the letter late that night, without waiting for an answer; start the first thing the next morning for his brother's house; and behold, it was done! But even here there was an obstacle--one last exasperating obstacle--still in the way.
If she was known at the inn by any name at all, it was by the name of Mrs.Silvester.A letter addressed to "Mrs.Arnold Brinkworth" would probably not be taken in at the door; or if it was admitted and if it was actually offered to her, she might decline to receive it, as a letter not addressed to herself.

A man of readier mental resources would have seen that the name on the outside of the letter mattered little or nothing, so long as the contents were read by the person to whom they were addressed.