Thing is, you can reason it away a million different ways.
However the one factor you had/ have control over in the whole situation is your own behavior.
I do feel we are all responsible for each other. I don't think it is good to act in ways that would harm another person and this woman's mental issues aside- yes, maybe you did contribute to things. And maybe not. Your actions were not "positive".
Either way, you should probably focus on being the kind of person you want to be and not the one that has cause for bad feelings, guilt and self torment.