Sentence:  From the tenour of your last letter however, I am led to imagine, that you have formed some new attachment.—If it be so, let me earnestly request you to see me once more, and immediately. This is the only proof I require of the friendship you profess for me. I will then decide, since you <WSD>boggle</WSD> about a mere form. 
Meaning of the word marked with <WSD> tags:  To be bewildered, dumbfounded, or confused.