Yeah, it's a lesson we have to learn- Ts put them or their families/needs/friends... first. In the long run this is good, it enables to work as Ts (prevents burnout). However, sometimes it sucks.
Personally, I think once she said she would (try to) call she should have. Leaves the client hanging. She should have told you no, I won't call you, I don't have the time. So yeah, I'd feel hurt/angry too.
But please, try to find some other ways to deal with it than SI.