you gotta be in control, wat the hell do you expect from her without her knowing, just tell her she's beautiful, and your sure shes hearin that everyday already, but you felt the need to tell her....and it sounds like her bf is a real dick, and doesnt tell her shes beautiful, not everyday anyways, she'll realize how much of a dick her man is, and then run off with you.........lol that's my number one line, even on girls that have a BF, and it still works.......cause im a guy, i know how a guys mind works, and telling your girl shes beautiful EVERYDAY doesnt cross no mans mind.......lol