I had been ok with Abs in this situation up until this point, everything prior was a result of diplo issues with AMA. However, sending a CF offer does not close a hostile, accepting one does. Abs has very clearly now double hostiled AMA. Now an excuse is required :P
EDIT: To clarify for some people posting about it, in-game diplomacy issues are not handled by Admin. This is a community issue, so you can refrain from trying to argue game rules translations.