It would have been a wee bit more believable had she called you already at the rehab for several days.
Also I get the feeling from the way you keep writing about rehab that that is going to be the MAGIC CURE for her .................................................. ..... WRONG, NOPE, NOT BLOODY LIKELY.
Rehab is just the FIRST baby step, in a LONG ROW of steps. It will give her SOME TOOLS, it will start to teach her how to USE THOSE TOOLS, but and that is a BIG 'BUT' she is the one that has to APPLY THEM, USE THEM, and WORK VERY VERY HARD ON HER RECOVERY.
Nothing has changed. Just another call that she is GOING (really?) to rehab. Probably because she is out of her DOC and is fearful of coming down.
When will you go NO CONTACT????????????????????????????
J M H O