My "best friends" comment was in relation to before when you presumably showed her you detached. I remember you saying something to the effect of her thinking you two would be best friends once she left and you had to show her what it would REALLY be like, which of course she did not like.
Frank, don't ACT. Just BE. The only thing I'd curb is the desperation. Put a cork in that and wing the rest being true to no one but yourself.