Daryl T, I think this depends a lot on your timescales i.e., your wedding plans etc. There is, as far as I am aware, NO fast track to teaching or nursing in either the Philippines or the UK - both Countries require that you complete a Degree in each of the subjects that you have mentioned. Even if your Gf gets a degree, I'm not sure of the status of those degrees in this country.
I'm sure someone with more in-depth knowledge on those subjects will advise you better than I can, but definitely there is NO short cut to either of those 2 careers.