I am very comfortable with my decision not to fully transition in a physical sense. In general I seek to own my decisions and I try to make them as soundly as possible. However like many have observed, the situation and factors do change. FFS didn't accelerate me towards GCS. Low dose HRT helped with my dysphoria and over 7 or so years my dose is now at transition levels. Folk sometimes gender me F but in general gender me M and I am pretty OK with either.
Over the 7 years I have 'come out' to most everyone in my life as a non binary genetic male. Changes continue. My hair is longer. I no longer have any facial or body hair and my clothing is clearly andro in design and in color. At the same time I have changed industry and changed employer finding much greater comfort, acceptance and understanding working with younger, more artistic folk.
There appears to be little doubt that my wife will leave if I proceed to GCS but she has stayed with me throughout the journey... so perhaps she may be flexible. However this is currently a moot point as, while a full physical transition remains a possibility, I do not consider it as an imperative or indeed as likely in the short term..
Not fully transitioning as a non binary appears to be relatively common, but may not necessarily be the norm. I guess that the continuing challenge for me is understanding, accepting and expressing my true self and while it continues to exist outside of the binary I will continue to challenge and to confound others that wish to categorise and judge me. Authenticity appears key to my sanity - fleeing to the other binary doesn't feel like the right solution for me at this point in my life journey, but as they say there are different strokes for different folks.
Safe travels
Aisla