My experience is similar to yours, but I wasn't quite as explicit about my views. My Dad caught me alone one time (the kind of moments we all try to avoid) and broached the subject of my coming back to meetings. All I said was, "I just can't live like that. I think I'm a good person, and live my life the best I can and God will have to decide...but I just can't live with all the meetings and rules." He quietly said, "OK." That was it.
Shortly after, I moved out of state. I truly believe my parents let their friends think I still go to meetings, and they tell themselves that I'm still a good person and trust Jehovah will spare me thru Armageddon. They come out for visits, and stay in our house, and nothing is too different, except we don't talk about religion.
I think my moving away took the pressure off them to make any decisions about me, and maybe pressure from the Hall to shun me. I've always been surprised and so glad I haven't lost them, as I'm an only child and they are getting old. Maybe they hope this course will someday bring me back, by not cutting off ties. Who knows?