Cllr Kayes, who is the Dorset County Councillor for Bridport, as well as representing the town on the district council and serving as its current mayor, said she removed the post as soon as she realised it could be seen publically.
She said: "It was my private opinion at 7am. It certainly wasn't said in my capacity as mayor. It isn't necessarily what I felt, but I was upset."
Cllr Kayes runs two Facebook account, one in her official capacity and another with private settings.
She added: "People have a right to a private life, even when they are politicians. I am really sorry if it has caused anyone offence but I was privately expressing my opinion in the heat of the moment for a private audience.
"My account was hacked and the settings changed so a private message could be seen publically. I believe this was done with the intention of causing me damage."Sure it was.
I mean, the only other alternative is that you're too dim to keep seperate accounts, and surely no-one would elect you if that was the case. Right?