I wouldn't consider exposure. These things have a way of becoming known to people over time. My H's parents didn't know about his A for a few months, but they do now. And I'm glad I wasn't the one to tell them.
I think patience is the key here. You don't need to be the one to drop the nuclear bomb - time will do it's work.
Try and take your focus off more off the A and put it more on to moving forwards yourself..
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus