Reply To: He has a past, and she doesnt know. Or the other way around.

Get in touch with a Rav immediately and tell him the whole story. If your friend gets married and then divorced, you’ll feel guilty AND if she finds out that you knew, you lost her. this is not only a “past” thing this is a “present” thing. Any Rav that is open-minded and not only on his side. Many Rosh Yeshivas are learning slowly that it doesnt help “covering up.” Couples are getting divorced left and right because things were covered up.