Work affair - part 2

[mrspick]

I posted on here a few weeks ago about having a work affair, I call it an affair but he told me he was single! He has since admitted they were together part of the time we were involved, I believe now they were together the whole time. He also told me near the end of our "relationship" that he had been seeing 4 other girls before me while still with his girlfriend. Anyway, I was asking if I should tell her and most people said yes. I haven't but have today found something else out. I work for a charity and he told me (when he admitted they were together for some of our relationship) that she was working in one of our shops one afternoon a week, I was a bit put out but wouldn't have to see her. It turns out she is working in our warehouse 2 days a week where I could definitely come face to face with her. She would not know who I am but I would know who she is. How cocky can you get? I really am on the verge of telling her. What do you lovely ladies think? There are children involved which was what had stopped me telling her.

Can you ask you ask her to go for a coffee?
A sit down chat with her might go down a lot better than blurting it out while she's busy working and then not getting the whole point across and her not wanting to continue the discussion.
Or worse still others overhearing and stepping in with their skewed take on things bearing in mind being a man he's probably already told them. (A Braggy version where you are obsessed with him and offered yourself on a plate la de da now he doesn't want you and your determined to cause trouble.(men do this)
I would tell her though because he won't change and she is living a lie and deserves to know who's she's building a life with.

I wouldn't tell her. You could cause so much tension at work that your position becomes untenable. If you're that desperate to tell her, I suggest you line up another job first and tell her on your last day

I’d tell her. She deserves to know the truth of her life.

Thank you for all the replies, a mixed bag. I wouldn't tell her at work, I was going to message her. He has put us both in the position of coming face to face and her having to speak to me, not knowing who I am. She has recently started at work so he has clearly told her about a job knowing full well she might come across me, forget me that is just taking the mick out of her. The arrogance is breathtaking.

I would tell her. She deserves to know. But I'd tell her and not expect anything of her (I.e. she may decide to ignore it all and stay with him, as women often do, so I'd try not to worry myself about her decisions). I also wouldn't do it anonymously as whilst that might be better for your job situation realistically he will still know it was you and she is much less likely to believe an anonymous message.