Good advice . . . thanks! Yes, I don't need to reveal source to confront - just need to be careful that I don't reveal what only this OP would know - this person is uniquely close to the whole sitch. I will have to confront at some level tonight when I refuse to let my dd sleep over at his/her/their place . . .
You know . . . now that I have proof that everything I thought was a lie WAS a lie . . . I can see why the affair busting techniques here are recommended. Hard to act so strongly when there's doubt, but I get it now.
