No I wouldn’t one because that is a lot of heart ache to endure and two I would be frowned upon and called a troublemaker instead of being thanked because of that person not wanting to know that it’s true and three more than likely he or she already suspect that something is going on because when people cheat things in a relationship change they stop doing things that they used to do with you a sure sign that something is not right.
You’re welcome Hillary

You wouldn’t be a whistle blower. Thank you for the comment.