Albert Barnes Commentary Judges 15:1

"But it came to pass after a while, in the time of wheat harvest, that Samson visited his wife with a kid; and he said, I will go in to my wife into the chamber. But her father would not suffer him to go in." — Judges 15:1 (ASV)

Visited his wife with a kid – A common present (Luke 15:29). From Samson’s wife being still in her father’s house, it would seem that she was only betrothed, not actually married, to his companion.