http://http://lonerwolf.com/gaslighting/

Interesting, I found this link today, that explains the behavior of my former boss very well.

The paragraph on the work scenario rings so true to me. This also caught my eye: Changing the subject. The gaslighter may divert the topic by asking another question, or making a statement usually directed at your thoughts, e.g. “You’re imagining things—that never happened!” “No, you’re wrong, you didn’t remember right.” “Is that another crazy idea you got from your (family member/friend)?” He would always try to say that I misunderstood things or wasn't remembering correctly what he said if I tried to challenge him in any way or get him to make good on a promise to me.