Hi Ulysses,
Nice to hear from you! Hope your graduate studies are going well, and I admire you so much for hanging in there while holding down two jobs, and raising a family
Do I ask the babysitter to write down other past instances of this type of behavior so I can give it to D9 therapist? I want to support my children, but I'm worried this is a creepy or invasive thing to do.
It's always so hard when we're trying to co-parent with someone who has different values (not to mention a mental illness )
Do you have concerns that the T is not aware that D9's dad has psychological issues?
One way to avoid slipping into a drama triangle is to stress test. The T will know whether she wants to know more -- you can ask her.
Meaning, maybe you call (better than writing things down, I would guess... .) and arrange a time to talk. Then be brief, let her know that the babysitter shared some things with you, and you aren't sure what to do with that information. If the T wants to talk to the babysitter, then she can take it from there.
Otherwise, you invite the T into a drama triangle that she may not want to participate in. It tells her your focus is on D9, and not on fanning the conflict.
As an aside, I'm kinda wondering what the T might think about the babysitter's conversation about someone murdering a construction worker.
There's probably context for this, but in print it comes off as a bit questionable.