1) The act of wearing feminine clothing does nothing for me. The act of pretending to be someone entirely different than who I am does. Being "Lexi" is a form of escapism for me and can allow me to not think about things in my normal life, even for a time being. There are more reasons to this, but I think this is the primary reason why I do this.
2) Yes. My potential SO knows my dressing habit and loves that I have a sense of fashion for both sets of outfits (male/female).
3) I am attracted to my partner more than my girl-side, seeing as my girl-side is just a different manifestation of my personality. To me, my girl side can never replace the warmth and affection I get from a partner who is NOT me.