Paltiel had grown to love Michal.1 He was desperately disappointed that she was leaving him and returning to David. Presumably he wanted to spend as much time with her as he could before she departed from the land of the Benjaminites. He also hoped that his tears might persuade Abner not to take her to David.
16 But her husband went with her, weeping after her all the way to Bahurim. Then Abner said to him, “Go, return.” And he returned.