Sorry you are here! Cadet should come by shortly with a welcome post and a ton of links. They are very good and informative!
I have been on a rollercoaster for a year and a half now, so 6 months doesn't sound so long to me. If you want to give your M every chance, hang in there and keep up the good work! She is still there and has done nothing to start a D or S process?
I really understand the urge to end the uncertainty. Limbo is not a fun place. But you might quickly regret what you put in motion.
Unless you know she's in an active A or otherwise doing things to plan her future in a way that makes it necessary for you to protect yourself, I would say that every day is a gift.
Also, I would read Divorce Remedy, if you haven't.
M 16 yrs, WH62, P54 3 adult blended kids EA 11/13, BD1 6/14 PA fall 14, BD2 2/15 Piecing 2015, BD3 12/15 Separated 4/16 WH moved OW in 5/16 Divorced 6/15/17