MIL came today to pick up ds and take him to her house to visit today at my suggestion so that I wouldn't have to be around her here at the house. Plus it gives me and dh some time to ourselves so, win-win for everyone. As I was making sure ds was properly buckled in, MIL says to me, "Sorry I was so bold yesterday about the therapy thing. I was out of line." !!!
So it would seem my intuition about MIL's tone and the look on her face was CORRECT! HA HA! Take that dh! LOL
As for MIL, I told her it was forgotten but made it clear that I'd spent too many years of my life putting everyone and everything above myself and that, at this point in my life, my becoming the best mother, wife and me I can be is my main priority - second to ds of course - PERIOD. MIL nodded in agreement and then she and ds left.