@ehBeth,
I've been trying to be quiet on this thread but I have to speak up and say that eating only one meal a day is not wise for your nutrition in terms of your metabolic needs; it is very unwise. That is not a matter of poverty (I have been poor off and on in my life) but one of understanding the body's needs.
Food doesn't have to be very expensive to be good for you.
Do you have any facilities at all to cook, or to learn to cook?
Even if not and that you might hate the idea of cooking, there are still are good choices that can be made about nutrition and money in grocery stores.
As far as your having a fiance that you expect to be there for you in (what? two years?), I have my doubts from what I've read so far, in that you two should be sharing more of your thoughts, and listen to each other, if you want to make it. It is hard enough for people who do share thoughts to be distanced that long.