It's a pattern I observed constantly in my H until reconnection. Periods of closeness/honesty are followed by distancing.

She is telling you she needs some space. I recommend giving as her as much as she needs.

Me54/H47
'08 H is "done"
March '12 H moved out
Brink of D, December '12
2014 totally reconciled!
......
"I firmly believe in the...absolute possibility of marriage renewal."
Jim Conway