I've recently been told by a good friend's mother's ex partner that the mother is a prostitute and has been for 8 years! Apparently she is on an escorting websites and meets men everyday for sex in hotels, cars, their home etc the ex partner said it's the reason they split up. My question is do I tell my friend? I do feel like it's none of my business and I should just stay out of it but if my friend was to find out and then realise that I've known and didn't say anything I don't want her feelings to be hurt, wwyd?