It's very common for the guilty party to project what they are doing on to the innocent party.
It would be really rare for a woman with a newborn to let go of a branch without having another branch to hold onto.
Sounds like classic projection.
The other branch(es) that she will hold on to are her mom and her dad. She told me how worried she is for me—I don’t have family / support network out her to look after me or take care of me financially. Her mom is out here, and both her mom and her dad are relatively well-off financially.
To me, this looks like concern-trolling of the highest-order—hey, I’m gonna divorce you, but I’m really worried about how you’re going to make it.
