frankly speaking, TS, I am gonna hurt your feeling, so pardon me.
This is for your own good.
If u cannot even makeup your mind, how would u expect her to have any faith in you..
You dun even noe what will happen (lyou aid your direction/path?), and what u will able to promise her in the next 3-4years (@ overseas)..)
Worst, u dun noe whether u want her to wait for you...OMG.!
You must have consideration for her, time=youth!! ...it's 3-4 years, not 3-4 months.!!
If u like her, then follow your heart, stop think here think there...and set your path straight, tell her...and both of u (u and the gal) plan...
if you are unsure, forget it... dun waste her time...
...............Hope I am not too harsh, Hope it help..................................................
From a lady point of view.. (we dun like undecisivie guy!)