During the truce between then, the developed a regard and respect for one another. He observed the hatred between Hakeswill and Sharpe and when the deserters were routed and scattered, he delivered Hakeswell back to Sharpe with his compliments.
During a Christmas dinner for both British and French officers under truce, Teresa arrived but would not enter the inn while the hated French were within. Dubreton came outside to them and was introduced, "You are as beautiful as you are dangerous, ma'am." To Sharpe's surprise Teresa was polite to him and he said to be her friend that it might be worth losing the war, and she was pleased with the compliment and allowed Dubreton to kiss her hand to her husband's complete astonishment.
In the aftermath of the battle at the Gateway, he witnessed Hakeswill's escape and subsequently his killing Teresa. He returned the fugitive to Sharpe, and told him what he'd seen.
Prior to the war, he attended the Royal Academy of Equitation in Angers, France with Arthur Wellesley.