this sounds so familiar to me. From unbelievably insane thoughts (thoughts of open marriage or "work spouses") to full ignore the elephant mode in a matter of minutes.
Me-45 W-44 S21, S18, D15 T-27, M-21 BD Jan 2014 PA revealed March 2014 In-house separation - April 2015 I filed - Aug 2015 She moved out Oct 2015