Sorry but to me it sounds like she's not sure what she wants but is leaning towards splitting, but it just stringing you along so she has a safety net.
That's exactly what my W did to me two years ago.
Looking back, honestly being separated for 12 months was the best thing we could have done. It really taught us a lot about ourselves and each other. Unfortunately maintaining two homes is quite expensive.
Me: 43 W: 37 Together: 18 M: 15 D: 8 yrs old ILYBNILWY: March 2011 She Filed for D: August 2011 She moved out: Sept 1, 2011 Reconciled: May 2012 Divorce Case dropped: July 2012