Hamilton asked for it.
Hamilton was determined to stop Burr who never would specify exactly what his insult was as per the etiquette of the duel.
Burr was apparently much in love with his wife and when she died his imagination was much exercised. He raised his daughter with a male education and was also devoted to her.
Perhaps you can explain how the current Senator Burr could be related to Aaron when the daughter and only grandson were drowned on a voyage to NYC to visit?
A fascinating account of Burr, Jefferson and Marshall is the one written by Washington Irving reporting on Burr’s trial for Treason.