@atlas1984,
You need counseling, if you're not already getting it.
Your loneliness and probable depression (I am not a doctor) are something for a doctor to treat, just like you would get a doctor to set a broken leg.
It's clouding your thoughts and potentially your judgment. This is not to say that you can't have genuine feelings for this person. And they may very well have them for you in return. But they are however many hundreds (thousands?) of miles from you. The distance does nothing to help with your loneliness.
And recognize that this woman's job is quite literally to pay attention to lonely people and build them up. And before you say that it's different because you're texting, they could be keeping in contact because it's free and, potentially, they have you as a sure client if you return to their country. Or even as, eventually, a way to leave their home. You have no idea if they're playing a long game.
You don't know anything about them beyond what they do for a living. And because their job is to make people like you feel good, it's easy to let your imagination and your hopes run away with you.
Get counseling. And I hope that, apart from what you had owed her for her services, you haven't given her any money.