When I was on Twitter, I found Mary to not be very vocal about her thoughts/plans, just dropping a hint every now and then, usually a current situation. Combine that with how Twitter now blocks anyone non-member from seeing what someone posts and you can see it is no longer the platform to reach out to people; perhaps the reason we missed any hint of a recent trip to Belgium. While observing a degree of privacy, I think models like Mary have a story to tell.