Well.. SO and SD were talking in the car yesterday and SD said that BM told her "if SS17s graduation gets pushed back a day she won't be able to make it."
Hmmmmmmmmm these are the exact words she told SS18 last year... luckily for him it didn't get rained out and pushed to the following day so she was able to make it.
My guess.. she doesn't realize graduation is already pushed backed a week from its originally scheduled date. BM and her husband go to bike week in a particular town every year and they will not miss it even for her own kids high school graduations LOL.
Maybe I'm wrong.. maybe she has something planned the following week too?? We will see. Graduation 2.0 drama is starting.