No offense, but I don't feel that you have. Threatening him with changing sections might have been appropriate the first or second time. At this point, having him moved to another section isn't good enough. If you feel harassed (and from what you've said it certainly seems you have been) then that student needs to be reported. End of story. You have no reason to feel guilty for reporting sexual harassment. Whatever consequences he faces, he's earned.I've certainly taken a lot of this advice to heart.