Samson's wife wept before him, and said, You do but hate me, and don't love me: you have put forth a riddle to the children of my people, and haven't told it me. He said to her, Behold, I haven't told it my father nor my mother, and shall I tell you?
It was after Samson had paid his debt of 30 garments that the text says he became angry. The object of his wrath here was his "wife," not the Philistines. Samson did not intend to abandon his plan to marry the Timnite (Judges 15:1-2). He went back home to let his anger cool.