I don't think it was one thing for me. Lots of things that added up.
Lack of love. Coldness. Fear of each other.
My friends at school were much nicer, better people than any of the kids my age at the Kingdom Hall
I started getting the idea around the age of 13 that I needed to find a husband. A good JW husband. I was really drinking the Kool-Aid at that time. Over the next 2 years I woke up. I knew I didn't want that life. I wanted no part. I wanted to get a college education and get a good job and be able to support myself. I was definitely influenced by my school friends, teachers, reading Animal Farm in the 9th grade, and the non-JW side of my family(grandparents, aunts, uncles and cousins). I am eternally grateful for those outside influences. They gave me the courage to revolt and leave.