I don't feel that the OP is shirking her responsibility in terms of her own reactions to dysregulation. I think she's quite aware that her own reactions are based on her own history and that her jumping to disrespect is a pattern she's open to exploring. I think that's what this whole thread has been about: how to deal with dysregulation.she could focus on in her own beliefs and filters that may be more helpful than throwing all of the responsibility on others.
I disagree that losing respect for somebody who falls apart on the regular is necessarily dysregulation in itself. Some people do, say, don't do, don't say certain things that make us lose respect for them. It's that simple. Now, there's no saying how much or how little dysregulation a person needs to display for the OP to lose respect--so that's what she's here to examine--but I wouldn't blanket dismiss her reactions as maladjusted.
Are you suggesting the OP look into why the person is dysregulating and whether or not she has a part in it?from what I am seeing in this it is happening with regularity and seems to be a trend. That to me (which does not necessarily say it is true - this is just a thought) means that the OP might want to look at why that might be.