Strange how that anger can live on for so long, no? Though I'm not D yet, I do see that anger often - most days when she picks up our baby from me in the evenings.
I think it's good to be assertive - and not to involve yourself in her kinds of anger or issues - since she does seem to want to push you into a role that she imagined you played before...and that's not who you are.
I'll share with that you I've been looking into the teaching opportunities out here - and am surprised at how hard it's been to find one...I'm still thinking long-term, however -and so hope to get back into teaching by next Fall...I might be able to line up some teaching for this summer, though.