The Lib-Dems started as a cowardly form of Labour, and then New Labour became a different sort of cowardly form of Labour, so labour/social-dem politics in the UK is really quite a mess, as we can see from current elxn results.
I suspect that Mr Clegg's little adventure is going to end with the Lib-Dems being wiped out, and maybe the Old Labour rump will rise again. Or something. But it is a mess.
Meanwhile, the SNP has its first majority in the Scottish parliament, which probably means a referendum on independence w/i four years. I'm not sure the independence option would pass -- Scots vote in elections rather as Quebeckers do, often mainly in protest, but that doesn't mean they want the end of the union. Or it could.