Guy, all I have to say is that its better u find a way to let her know u are not on the same wavelength with her. Where there is no chemistry, love cant grow or thrive no matter how hard u try. There is no way u can continue trying to please her (hence pretending), one day the real way u feel about her will show. Its your decision to make and the sooner the better to reduce the hurt/pain she will go through.