Sorry I didn't know where to post this. So my boyfriends friend is seeing a married woman. The woman's husband is unaware. I'm not sure why but this has really pissed me off, as I have been cheated on. I don't know the woman or the husband so I know I can't do anything about it. And my boyfriend is just saying to not think about it but I can't help it 🙈  I feel like shit knowing I can't do anything