Should I, I wish I had advice for you on what to do between now and July 12th for best results. I don't but I do know you have to do the opposite of what you have been doing.
Be sure to show her only a positive you, one that is changing for the better and is able to move on but also, leave the door open for change in the future. People get back together after D, so as the pros on here say, "It's only a piece of paper, don't put too much stock in it".
Your wife sounds a lot like I did several years ago. I was very confused about what I wanted. There were so many days I wanted to leave (but deep down I always felt I would regret it) and weeks on end where I was completely "out" of the M. One day I needed love and hugs from my H and the next I needed a date, then I didn't need anything, etc. For me, it came from years of being unhappy in the M and feeling that my H had been out of the M emotionally for several years prior to me getting to the point of not being able to take it anymore.
The only thing that helped me get back in was time.
M 46 H 44 D 12 S 8 M 9 T 11 BD 2/15/13 "Makes sense to stay together" 5/12/13 Agree we are 'healing' 7/13 Definitely Piecing 9/13