They don't want us - they want our money. We are a pain because we don't conform or like their ways and always argue. In many ways they'll be glad to be rid of us so they can build the nation they want.
Sure they'd have us back - as supplicants, so they could impose conditions such as 'adopt the euro', etc. and, having followed the way 'negotiations' have gone over the last couple of years, I suspect many more humiliating, imprisoning measures. No, this is a once and for all measure. Do or die! - as life always was, so no real change there. :)