My wife.
Like many others, I did more traditional martial arts growing up: Tae Kwon Do (traditional and Olympic), Kenpo Karate, etc. After UFC I grappling arts became the buzz word in martial arts, at least in the United States. Unfortunately, there was no grappling where I lived, not even wrestling. Halfway through High School I moved to a more grappling friendly place and started Judo and wrestling (I was quite eager). After school, I moved to yet another un-friendly grappling place for work and college. Things keep getting in the way and I never returned to the mat...until I got married.
My wife wanted to do something during her summer break (she is a school teacher) and signed us up for BJJ classes. Been hooked ever since.