There is a good chance of another civil war breaking out between leftits parties and syndicates' militias, and the Government, and the Republican Nationalist.
I'd hope a surviving Republic would be able to reach a working solution, the Spanish people deserve a break from war. Unfortunatly you are right, there will be serious tensions.
The one upside for the Allies in a revived Spanish war is it opens the way for Britain to occupy the Spanish Atlantic islands.