I have very good evidence that my male colleague is having an affair with another colleague. It's only a small office and they are very cosy; going for lunch together and to the gym.
I have seen them leaving the office together very late, after he made a show that he was going home. I sit next to the guy and have seen them messaging during work hours and she once let it slip that he had given her a lift home from a work event.
I live near to her and yesterday morning when cycling to work I saw them leave her house together, although they walked in to work separately.
I know the guy is married and that his wife has just given birth to their second child. The woman is single.
I despise cheaters and it makes me mad that other colleagues think this guy is a real family man.
If you were the wife in this situation would you really want to know? Would you believe an anonymous tip off?