Hi Min
Seeing you are not DS'd or DA'd, you can still associate with your family (at least I believe that is your situation). Having been an elder, you knew all the rules and were able to "get out" with less consequences than others.
You caused this family grief. You were one of those elders who did that to people who weren't as "JW-street smart" as you.
OK, we forgive you because you were brainwashed too.
HOWEVER, you now have the opportunity to apologise to this man. Obviously he is going to be traumatised everytime he sees you (JCs do that to people). So something in writing would be the kind thing.
Just my view.
penny2