Blick him no matter what.

You did the right thing. Both for yourself and your family. Not to mention, she needed to find actual childcare before getting g pregnant again.

She was massively abusing your kindness and planning to extend that even further. It had to end.

This IS a break up with him stringing you along for sex and comfort u til he finds your replacement.

He is NOT your soul mate. He's a jerk that is trying to use youand prolong hurting you

He's dumped you. The relationship is over.

Cut him out of your life, block everywhere once he's gone, and get into therapy.