I'd be more bothered by her apparent uselessness and phoniness than the breach of trust.

I see no point in trying "work though" a screwed up therapy relationship. It's like paying to have a bad relationship, then paying some more to work your way out of that.

The rupture might well be a product of the inherent dysfunction of thearpy rather than something real that warrants concerted effort to resolve. For me it was a lot of destructive drama that served no purpose. I realized I did not have to drink the kool-aid.

eta: Relationships are difficult. Cultivating a healthy and enduring one takes commitment. Trying to do so with somone who might well not give a crap about you, and who is not invested in it, and who is getting paid to sit there... pretty sketchy proposition in my view.