FWIW, I spoke to a female friend yesterday that has been married for 35 years. A long time considering she is 53. She told me she has gone through "Funks" that have lasted nearly a year. She said that she was ready to move out only to eventually snap out of it. I asked her how her H responded. She said he was consistent and did his own thing. Not reacting to his irrational W.
Anyway, I thought it was interesting.
M 53 W 54, M since 98 D15, D19 8/2013 discovered EA, W maintained contact with OM until 10/14 7/2/17 W said she wanted S, 7/25/17 moved out of MBR 12/17 W says moving out 5/18, W still in home.