AIBU to tell a colleague her husband is on Tinder?

[Workdilemma111]

Yesterday I saw a colleagues husband on Tinder. His pictures were recent and his profile was verified so definitely him. Same name (which is quite an unusual one). We've met a couple of times, but I don't think he'd recognise me. His profile said he was "still figuring it out" and one of his pictures had his wedding ring in plain sight.

My XH was caught on Tinder by a colleague who told me she'd seen him on there and it ended my marriage. I'm so glad she told me. This was a long time ago now, but I've never kept it secret that that is why I'm divorced.

I know I need to tell her, but we work very closely and I don't want to make things awkward.

How would you tell her? ChatGPT told me to create an email address and tell her anonymously so she won't know it's me. We just had a conversation last week about how much better things were between them so definitely not split.

I'm working away until tomorrow so haven't seen her, but I know I need to tomorrow.

AIBU to tell her? Or should I keep out of it?

Another quick update, she messaged me last night to say thank you and that she really appreciated me telling her, and that she could see how hard it must have been to tell me. I've checked in with her this morning and she says she's ok, busy day at work with an event tonight so she has a stayover which will give her a night to herself. I won't push her and when she's ready to tell people then I'm sure she will.
When I went over, she thought it was to tell her that I was poorly again (I've had some serious health issues) and she did a huge breath out and said she was so glad that I'm ok and it's "just" her husband being a dick.

Keep out of it.

Honestly my gut instinct was a hard no! But you did the right thing here x

I think it helps that they were on the brink of separation. A seemingly happy woman might provide a different result 😬