Anyway you look at this Bill, both of you had your hands full - though perhaps more you than her. It's quite easy to see why the M took the back seat.
So yeah, it's probably not worth looking back anymore (though these issues would at some point need to be ironed out if things got back on track).
Yes, it's probably best to carry on with your plan. I had hoped that there was some little thing that might shed light on her unwillingness to recommit, but from what you say here, I can't see anything. So, maybe it really is just that she is comfortable with the status quo and you moving out will certainly rock that boat.
