More of a WWYD really and Ive changed some of the details just in case as it is quite a sensitive issue but the basics are all true.
I've recently found out that the wife of my brother DSIL has cheated on him in the past on a number of occasions. The source of the information is completley relaible and trustworthy so theres no question as to its truth. My brother and I are not particularly close and if im really honest we dont get along very well. Theres no history of arguments or acrimony just a case of different personalities and lifestyles.
Would IBU to tell him and almost certainly split up a family (3 kids ranging from 3 to 10 years old) or should I continue to pretend I know nothing and hope that he finds out by some other source or not at all?
To my eternal shame I have known for a while that something wasnt right as this was strongly insinuated by another person to me about a year ago but I buried my head in the sand and didnt ask any questions or for any details. Coming clean now will mean that I will have to also admit how long I have known although I genuinely did only find out the exact circumstances until 2 days ago. Will he shoot the messenger, so to speak and never talk to me again or will he be glad that Ive told him despite the delay? I havent slept for 2 nights worrying about it.