When you said "F*ck it!" and posted CoC link, you knew there would be trouble.
I see a game going on here. Play with fire and you get burned.
It's too late to lie and say "It wasn't me." Just kiss their asses and say "I was intrigued by discovering that book. Now I know it's wrong. I pulled the link. (Do so right now if not already done.) Should I give you a rim job while kissing your asses?" Then know that you pulled the wool over their eyes enough to continue your fade.
Get a fake name for a facebook account for your non-JW life or don't have a facebook non-JW life.