After the event of Jeremiah's death Andre DuPres seems to have disappeared from the storyline, being absent throughout the significant events that followed: Barnabas marrying Angelique instead of Josette, Barnabas dying, Josette and her aunt Natalie returning to Collinwood, then making plans to return to Martinque, Sarah dying, Josette becoming Barnabas' vampire victim, the discovery of the Collins' familiy history book's prophecy of Josette's death, the actual event of Josette's death.
How could he not be present during such a significant event as his daughter's death?
Did he fall off the face of the earth? Did he leave Collinsport in a huff to return to Martinque and tend to his plantation, leaving his own daughter behind?
Also amazing is that no mention is made by any of the other characters of Andre DuPres or his unexplainable absence during these events that followed. It's hard to imagine that Aunt Natalie wouldn't be vocal about the absence or whereabouts of her niece's father.