Amigo -- the problem with living overseas on American poverty-level income is that, while it's more than the locals make, it will leave you very little cushion for the problems of life -- illness, her desire that you support her whole family and build a house for them all (which she gets if you split), the occasional desire to travel, if you have kids, etc. This doesn't sound like much of a plan. It's nice to think of a "lady of virtue" loving you for your simple downstate smile, but I'm just not sure it's realistic and most likely you will end up poor and alone here, with the U.S. Embassy buying you a ticket home.
I don't mean to dump all over your hopes, but I've been here long enough to see this happen over and over and over again.