Well this is probably about to blow up
So awhile back SIL had been sneaking around behind DHs back to talk to BM (whom she previously had nothing to do with) and to do things with only SD. Including inviting only SD and BM to her daughters birthday, excluding our other 3 kids - 2 of which are DHs bios.
My youngests 1st bday is coming up and we invited MIL and FIL yesterday. Tonight MIL messages DH asking if SIL and her kids are invited.
Why is MIL the one asking this? And no, we were not planning on inviting them after that. I hate drama, but I don't want to he a doormat either.