Dolphin... At the end of the day, you finding another job could be the very thing you need! Keep pursuing that line of thinking and effort.

Don't look at it as 'letting them win'... try to look instead as your moving FORWARD leaving them behind in their own pitiful little lives and they will go back to turning on themselves. No one can change their behaviour, but you can hold your head up with pride!

Don't hurt yourself by quitting before you have something new lined up, becasue then you will end up punishing yourself for being rash/foolish. And even when you do find a new position, you can then opt to decide in advance HOW you will interact with your new peers. And, if you aren't wild about your new position... There's always looking in silence for something better yeah?

In the interim, while they are being abusive to you... Keep that inner smile that your on your own mission, and they are small minded.

Best of wishes, and gentlest of nudges for you to tap that inner strength that has apparently gotten you through much thus far. Lay out a plan of action, break it into steps to take... and persue them one by one!