Proof he is cheating.... do I tell?

[proofisinthepudding]

Speaking to a friend today that has a mutual friend with my sister. Friend told me that she has found my sisters husband on a dating app and that he is well know for cheating on her with both women and men in the mutual friends circle. I have screen shots of messages that prove he has cheated with his profile and picture. Do I tell my sister or do I stay out of it...? If it was me I would of course want to know but I'm not sure if she would.

I would tell her

Screen shot the proof

Definitely tell her, you can't not.

I’d definitely tell her

Yes you have to tell her

Absolutely tell her, there would be no question in my mind. There’s another post floating around about a posters friend who had an affair and whether she (her friend, the OW) should talk to and tell his wife. Of course. It reminds me of the ‘Stiff upper lip’ shitty mantra...tell your sister, she absolutely needs to know, if for her health if nothing else.

Exactly. What if he’s given her an std and she doesn’t get it seen to because she doesn’t know.

I’m sorry but if he’s cheating with both men and women her sexual health is at risk so bloody hell, tell her!!!!

Please tell her. Imagine if it comes out later and she finds out you knew....

Of course you tell her! But be gentle and try to pick a good time not a bad time. It will be awful so be prepared to offer support.

I thought that would be most people's thinking but so often I see people saying if it's not your business stay out of it. I am obviously concerned about her health as much as anything. I'm just not sure if she will want to know

She doesn’t want her husband to cheat, but she’d probably want to know if he was.
It’s going on within the friend group, if you don’t tell her, someone else will, it will come out, and like someone else said, how would she feel when she finds out you knew. Your mutual friends told you, and even showed you proof. There’s no question of how having to tell her.
Tell her as soon as possible.

If my sister knew my DH was cheating and didn't tell me... our relationship wouldn't be the same again.

Same dilemma with my friend OP. I've a post on here it's provoked a lot of reaction. Tell or not to tell...so hard. Think I'd want to know

I think I'd have to say something, because she's your sister. Awful, awful situation to be in, and she won't thank you for it, but you can't stay silent, knowing that he's 'well known' for shagging around. Your sister may already know, but at least this way you can't be accused of lying to her.

I really don't envy you at all - this is a horrendous position to be put in.

Urgh it's making feel sick. I know I have to tell her.... what do I even say!!

Sorry you're going through this too henna- I'll have a look for your thread.

I think people usually say not your business ect. When it's the ow or someone with an agenda wanting to say. It's your sister, your loyalties lie with her. I'd tell. Good luck, such an awful thing to have to do

Yes, you should definitely tell her. She has every right to know if she is being betrayed by her husband.

Definitely tell she will thank u in the long run..