Excellent job twisting facts.
He never made it home. The statement you’re quoting was made to his girlfriend on the phone, but he didn’t say he was going back. It was made while he was trying to walk home.
When I was 17, if someone was stalking me around a neighborhood in the middle of the night to the point where I felt creeped out, I may have very well ducked off somewhere in order to surprise him and get the upper hand too. Not saying that was the smartest move, but nonetheless, it would be totally about defending myself.