I had the opposite when my AHGF family was told, the blame for her drinking was put on my shoulders, they now don't like me.
Nevermind she was an AH before we met, I think she may have twisted things to make it my fault and get more sympathy from her family.
She's in recovery now and still contacts me but I won't be with her until she's much further down her recovery road and she rebuilds bridges she destroyed.
My advice based on experiance is say nothing, let them find out for themselves.