Portia, you sound a lot better recently. I think you need to take snodderly’s advice and wait until July. It looks like your xSO and his GF are both in rebound relationship with each other. This normally doesn’t last. And then the kids… Just wait, all kinds of issues will come out when dealing with the step kids. I’m talking from my own experience. My son was 8 when I married my current H. There were all kinds of issues with parenting, but my H was committed to the marriage at that time and he was not confused like your xSO is now.
Hang in there, girl. (((((hugs)))))
M:50 H:52 S28 (my S from previous marriage) M:17 + 3 BD: 06/12 S: 06/12 - H works in another state