Another long shot, did Charles have to go and serve in the forces due to WWII or was Charles in prison for some reason and if so could the man Florence went and stayed with a unknown relative.
You say you have an address but not 100% sure, have you searched that address on the 1939 register?
Have a look at the voters list for the first year after the war ( there were no electoral rolls for the war years ) look at who is living at that Aldern road address If she has not gone back to her husband you could look at all the voters living around Norton A very tedious assignment but you could find her.
It is unlikely her husband a serving police constable would have been called up for war service