I've been following this for a while, trying to figure out what I might do in a similar situation. Some have wisely suggested that you say a little in front of the group. Others have wisely suggested that you say nothing. All have wisely suggested that you maintain your dignity, as I believe you would have done in any case.
My experience with this type of situation is that the rescue happens well before the meeting. Touch base with the key players (in person or by phone) before the meeting, especially the chairperson. Do what others have suggested, but on this small personal basis instead. Consensus will be formed long before the meeting, and you will know already whether it is safe to return or not.
Good luck, and I look forward to hearing how it turns out.
Miriam