I'm hearing lots about the Welsh and Scottish nationalists getting too much out of an alliance deal but lets reverse this:
In Wales conservatives got 8 seats
In Scotland only 1 seat
Whilst in Northern Ireland the Ulster Conservatives and Unionists 0 seats ( I might add add this point that due to the political history in Northern Ireland such a coalition was a very silly idea. )
So if Conservatives where to take power It would quite clearly look like England was trying to rule over Scotland, Wales and Northern Ireland. Which in turn would give huge amounts of fuel to the furnace for the Welsh, Scotish Nationalists increase tensions in Northern Ireland and in turn tare the UK apart. England and more specificity the Conservatives I'm afraid are going to have to take this one on the chin for the good of the UK whether they like it or not.
So please Labour back bencher's don't put a spanner in the works!