It seems a guy has most success with women when he doesn't care about them. He rarely initiates contact but will reply, tones down his affections and compliments towards them and keeps busy enjoying life seeing his gf when it suits. Never get too caught up in the relationship and be ready to walk at any time.
His time with her though will be short usually but exciting and different every time.
The girl will miss him, see him as a challenge and secure and confident in himself and great fun to be with. This guy can't lose really.
On the opposite side is the needy over affectionate boring loner which clearly is bad approach.
Clearly a balance is needed but this can be very difficult to achieve