HOWEVER, it could have been a combination of the two things. He could have planned in advance, that he was going to bring home a girl. And he saves up some supplies, built in a way to hold her hostage at the house, like a locked closet or basement, etc, shaves his head, AND THEN he goes hunting an hour or two from his cabin.
He could have seen her and her mom at the market, or saw them as they were returning from the family party, etc etc. Then waited until the middle of the night so the neighbors would all be asleep....