I can see how this can be seen as sabotaging, although I was thinking in a direction of more aggressive behavior, harassment, bullying, stalking, abuse, smear campaigns.
I think with a situation like this it's important to think about what you really want and if this is a place that can provide it, from what I can read it's not and I think you made a right decision.
I've been in situations where I was so caught up in the problems I encountered that I acted like they were minor side problems that if solved, there wouldn't be any problem, while the places or people couldn't really provide what I was looking for, what I wanted/needed or what would help/benefit me and the problems that I encountered were actually a result of that.