Should I tell my coworker that I had sex with her baby daddy that is still her long term boyfriend?

[Anonymous]

me and her have been working together for two years, we aren’t friends but we get along pretty well and talk about pretty much anything and everything.
she just came back to work after having a baby, he’s now 6 months i believe and about 3/4 months ago i started going out with some new friends and they introduced me to this guy that at the time i had no idea that was in a relationship and had a baby. we had sex and it was great, we were obsessed with each other and i go on telling her about this encounter and how much i was enjoying getting to know this guy. fast forward to last week she brings her baby to work so we could meet him and guess who’s there pushing the stroller? the fuck that i had sex with and she goes on to introduce us as her boyfriend, she talks about him a lot but i had no idea it was HIM. at that time i focused on the baby and didn’t say anything later that day he called me from another friends phone so i would pick up and goes on telling me it was wrong but that he likes me which is bizarre that he has been dating for almost 13 fucking years has a baby and is out here behaving like a teenager. i didn’t say a word back and hang up. i’ve been getting no caller id phones daily and im pretty sure it’s him, i stopped going out and hanging with the friends me and him have in common. so what should i do?

Updates

4 mo

the thing is i don’t know how to approach this subject. she knows me and them (her boyfriend and her) has friends in common, in specific one really good friend but im not super close with her to just break the news that her baby daddy is a dog. like how do i even bring that up i work with her i don’t want to make things awkward

[wolfcat87]

Please, for the love of women tell her! He is putting her at risk, and he's wasting valuable years of her life by selling her lies. No woman deserves that. At least if you tell her she'll have a chance to make different choices for herself and protect her self. Men who cheat are the worst.

[Asker]

i don’t even know how or where to start. whenever we were out he was too and not once he talked about having a baby so that’s the part that i don’t get. i work with her i don’t want things to get terrible between us and this girl is still sooo in love with him

[wolfcat87]

Do you have any evidence of him contacting you or remember any identifying information as proof? Do you have her number where you could text it to her or write her a letter? Definitely tell her that you don't want things to get terrible between you and you feel horrible about what happened but you didn't know. Then go off on him like you're 100% in her corner and so mad at him. That might help.

[Asker]

i’m with her daily, we work at the department. i don’t know if i should tell her that the guy i’ve been telling her about is actually her boyfriend and maybe have her pick up one of those no caller id calls so she can see that i said no but he keeps insisting

[wolfcat87]

Do it. No mater how it goes, you'd have the high ground and have done the right thing.

[ColHathi]

Definitely.

[ColHathi]

There's probably no avoiding things getting awkward 😟 I don't know how I'd go about telling someone that. There's probably no good way to do it. I might try to tell her around the time that she's ending her shift right before she has a day or two off work (assuming she doesn't work all 7 days a week). That way she at least won't have work getting in the way of her thinking about what to do about it.