I agree with you: it's a textbook case. You can add her recent bad mood to the tally (breakup). By the way, five years ago when my W confessed her first A, it was her first step to asking me for reconciliation. Also, expect many more "discoveries" when you look back at what she did and said in the last seven months.
I agree with T0324: It's like WAS know when LBS turn around. It puts you in a good place to consider all options calmly.
I agree with Tarheel. Let it sink. Sit on it for a few weeks.
M39 D6 D3 (at S) S 2014-09 D 2016-09
"You can't start a fire sitting around, crying over a broken heart" - Bruce Springsteen.