Your 'Master' is definately responsible. Not only did he disreguard your own safety and wellbeing, but he put you in a dangerous situation which caused you irreperable mental harm. This man who claims to be a "Master" isn't one at all, he seems more like a little kid on a power trip.

I had a Master just like that about a year back... regardless of my own experiences I encourage you to do what you feel is the RIGHT THING FOR YOU. Disreguard his feelings in this instance, and think about what you're going through and if the relationship is worth that.

Take care, poetic_justice