Sorry to jump in, but what's with all of the texting?! I text with my wife too, don't get me wrong, but the majority of our interactions, and ALL of our sensitive conversations were and are IN PERSON. I would guess that this is just another contributor to your lack of intimacy together. There are a lot of folks out there in a "virtual marriage" - don't make that mistake again if you recover.
I agree with the others above- stop pursuing her. You are literally speeding her exit without knowing it. Slow down, use your head, not your emotions, to guide you. There has to be something for her to want to come back to, and a long track record of a poor marriage combined with your current interactions are nothing anyone would by looking to return to.
