You don't have to even see or say anything to the OW to make them face consequences.
But believe it or not she is suffering at the moment. So many OW think they are super special to the MM, but when the affair is exposed they get chucked under the bus they are a terrible mess who usually need counselling to get through it. They are stuck in a terrible place mentally. I'm by no means saying they don't deserve it, but just showing you it's not happiness for their broken souls.
She will be stalking you on social media. She will be devastated if she sees pictures of you and your DH on FB. Ultimately she'll realise she was nothing more than a bit on the side.
Believe me she's living her own hell without any action from you.
The words of an OW
I believed everything ExMM told me about us, how much he was in love with me, all the flattery and good things about me which really boosted my self-image after going through a break-up a year before we hooked up.
How compatible we are, how we were going to live our lives together, do all these things together, where we were going to live, all of it.
I also believed everything he said about how he and his wife had no life together, did nothing together, just shared the same house, that they were separated, how he told her he wanted a divorce and they stopped marriage counseling. And I know now that it was all complete BS. Every single bit of it.
All of it makes me feel like a worthless piece of st.