Keeping my friends secret

[Tingtung]

I have a friend shes actually my best friend, ive known her for 10 years, her and her partner have a 10 month old baby.

When the baby was 3 month old, my friends partner cheated on her, they sorted it out and my friend forgave her, they seemed happy abd settled.

Recently my friend has been going out on a weekend, last week she told me she had met somebody a few weeks earlier, they havent slept together but have been talking and meeting up.

Do i keep her secret or do i say something?, i dont want the baby being caught up in all the mess.

She should still be able to be on the birth certificate:-

Unmarried, non-civil-partner parents

When a mother isn’t married or in a civil partnership, her partner can be seen as the child’s second parent if both women:

are treated together in the UK by a licensed clinic
have made a ‘parenthood agreement’
However, for both parents’ details to be recorded on the birth certificate, they must do one of the following:

register the birth jointly
complete a ‘Statutory declaration of acknowledgement of parentage’ form and one parent takes the signed form when she registers the birth
get a document from the court (eg a court order) giving the second female parent parental responsibility and one parent shows the document when she registers the birth

This is a situation where although I don't agree with cheating I wouldn't deliberately tell my friend's partner.

Why would you?

However, I wouldn't lie if asked something by the partner, or be used as an alibi either.

Yes shes adamant that shes forgiven her and is very happy with her partner but insists there something about this other girl that makes her want to cheat!.

Her partner has PND and was feeling neglected which is why she cheated although thats no excuse , she told my friend straight away and she got help from her GP.

I dont want to ruin her relationship or be a shit friend, i just dont want her to regret it and end up with nothing.

See, this is a perfect example of why apostrophes matter. I opened this thread intrigued to find out what sort of person would have secret friends that they didn't talk about or introduce to anyone. Turns out it's not about that at all, but about keeping schtum for a friend.

Very disappointed.

Czer Me too.

It is going to be a mess without your help. Telling her partner, who has pnd, is just going to make an even worse mess out of an already messy situation. The baby is already stuck in the middle of a bad relationship. TBH, it sounds to me like the baby will be better off if your friend leaves right now. She doesn't sound mature enough to be a parent. Self-indulgent. I feel sorry for her partner.