id say forget. from experience.
it being a woman, is irrelavant, its still cheating no matter what sex the other person is, as “cool” as it maybe to have a mrs who bats for both sides 🙄
There will always be a niggle in the back of the other persons mind, that unless your completely satisfied your partner is geuinely sorry and it was truely a one off mistake, will cause future issues. as mentioned above, i think there are alot of things to consider – family etc, however, if the partner was silly enough to make the mistake in the first place, she should be prepared to accept the consequences.
oh and to fit in with the stw massive, pics or gtfo as has been mentioned.