You wanna know the best way to get her back? Make it seem like he's a lot better off without her. Girls like guys who are mysterious and do their own thing. When they're on their date have a couple girls and guys call him and make it seem like he's got 10 other things and women to do at the moment. If he plans some super expensive and romantic date then it'll come off as pathetic and needy. No woman likes pathetic or needy. That's a fact. As far as I'm concerned he shouldn't need to "wow" her. If she doesn't know what she has then fuck her. Go find something else.