Sending many hugs to you and to the kiddos who want them. (((hugs)))
It sounds like something important may have come up that needed her immediate attention, but I am hoping something is not seriously wrong. Sometimes things happen that are out of our T's control, and it majorly sucks when it's on a weekend we have such a hard time. (Don't EVEN get me started on how upset I am with E-T about this weekend)