xMIL went on to meet and marry someone else very quickly. Step-xFIL and I get along great, but he and Mr. A do not and never have. Their relationship started to get better before Mr. A left, but it's bad again now that they're living together.

Meanwhile, xMIL does a lot for xFIL, but sometimes she's really mean to him. Like me with Mr. A - so history repeats itself.

But I am NOT doing that anymore. I'm changing the paradigm.